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{{short description|Byzantine emperor from 1185 to 1195 and 1203 to 1204}}
{{Use dmy dates|date=August 2020}}
{{Infobox royalty
| name         = Isaac II Angelos
| full name    = Isaac Angelos<br />{{lang|grc|Ισαάκιος Άγγελος}}
| title        = [[List of Byzantine emperors|Emperor and Autocrat of the Romans]]
| image        = 144 - Isaac II Angelos (Mutinensis - color).png
| caption      = Portrait of Isaac II (from a [[Mutinensis gr. 122|15th-century codex]] containing a copy of the ''Extracts of History'' by [[Joannes Zonaras]])
| succession   = [[Byzantine emperor]]
| coronation0  = 
| reign        = 12 September 1185 {{ndash}}<br>8 April 1195
| predecessor  = [[Andronikos I Komnenos]]
| successor    = [[Alexios III Angelos]]
| cor-type1    = [[coronation of the Byzantine emperor|Coronation]]
| coronation1  = 1 August 1203<ref>[[Geoffrey of Villehardouin]], ''[[De la Conquête de Constantinople]]'' [https://sourcebooks.fordham.edu/basis/villehardouin.asp s.48]</ref>
| reign1       = 19 July 1203 {{ndash}}<br>27 January 1204
| predecessor1 = 
| successor1   = [[Alexios V Doukas]]
| regent1      = [[Alexios IV Angelos]]
| reg-type1    = [[Coregency|Co-Emperor]]
| birth_date   = September 1156
| birth_place  = 
| death_date   = 28 January 1204 (aged 47)
| death_place  = [[Constantinople]]<br />(now [[Istanbul]], [[Turkey]])
| spouse       = Irene [[Tornikina]]<br />(ended 1185)<br />{{marriage|[[Margaret of Hungary]]|1186|1204}}
| issue        = {{unbulleted list|[[Anna-Euphrosyne]]|[[Irene Angelina]]|[[Alexios IV Angelos]]|[[John Angelos of Syrmia|John Angelos]]}}
| house        = [[Angelos]]
| house-type   = Dynasty
| father       = [[Andronikos Angelos Doukas]]
| mother       = [[Euphrosyne Kastamonitissa]]
| religion     = [[Greek Orthodox]]
| signature    = 
}}

'''Isaac II Angelos''' or '''Angelus''' ({{langx|el|Ἰσαάκιος Κομνηνός Ἄγγελος|Isaákios Komnēnós Ángelos}}; September 1156&nbsp;– 28 January 1204) was [[Byzantine Emperor]] from 1185 to 1195, and co-Emperor with his son [[Alexios IV Angelos]] from 1203 to 1204. In an 1185 revolt against the Emperor [[Andronikos I Komnenos|Andronikos Komnenos]], Isaac seized power and rose to the Byzantine throne, establishing the [[Angelos]] family as the new imperial dynasty.

His father [[Andronikos Doukas Angelos]] was a military leader in [[Asia Minor]] (c. 1122&nbsp;– aft. 1185) who married [[Euphrosyne Kastamonitissa]] (c. 1125&nbsp;– aft. 1195). Andronikos Doukas Angelos was the son of Constantine Angelos and [[Theodora Komnene (daughter of Alexios I)|Theodora Komnene]] (b. 15 January 1096/1097), the youngest daughter of Emperor [[Alexios I Komnenos]] and [[Irene Doukaina]]. Thus Isaac was a member of the extended imperial clan of the [[Komnenoi]].

==Rising by revolt==
[[Niketas Choniates]] described Isaac's physical appearance: "He had a ruddy complexion and red hair, was of average height and robust in body".{{sfn|Choniates|1984|p=248}}

[[File:Français 5594, fol. 193v haut, Mort d'Étienne Hagiochristophoritès.jpeg|thumb|Killing of Stephen Hagiochristophorites, c. 1473, [[miniature (illuminated manuscript)|miniature]] by [[Jean Colombe]] in ''Les [[Passages d'outremer]]'', [[Bibliothèque nationale de France|BNF]].]]

During the brief reign of [[Andronikos I Komnenos]], Isaac was involved (alongside his father and brothers) in the revolt of [[Nicaea]] and [[Bursa, Turkey|Prousa]]. Atypically, the Emperor did not punish him for this disloyalty, and Isaac remained at [[Constantinople]].

On 11 September 1185, while Andronikos was absent from the capital, his lieutenant [[Stephen Hagiochristophorites]] moved to arrest Isaac. Isaac killed Hagiochristophorites and took refuge in the church of [[Hagia Sophia]].{{sfn|Harris|2007|p=71}} Andronikos was a capable ruler in some ways but was hated for his cruelty and his efforts to keep the aristocracy obedient. Isaac appealed to the populace, and a tumult arose that spread rapidly over the whole city. When Andronikos returned he found that he had lost popular support, and that Isaac had been proclaimed emperor. Andronikos attempted to flee by boat but was apprehended. Isaac handed him over to the people of the city, and he was killed on 12 September 1185.{{sfn|Choniates|1984|pp=188-189}}

== First reign ==

Isaac II Angelos strengthened his position as emperor with dynastic marriages in 1185 and 1186. Isaac's sister Theodora was married to the Italian marquis [[Conrad of Montferrat]]. In January 1186, Isaac himself married [[Margaret of Hungary]] (renamed Maria), daughter of King [[Béla III of Hungary|Béla III]].{{sfn|Burkhardt|2016|p=50}} Hungary was one of the Empire's largest and most powerful neighbours, and Margaret also had the benefit of high aristocratic descent, being related to the royal families of [[Kievan Rus'|Kiev]]<!--See WP:KIEV-->, the [[Holy Roman Empire]], [[Italy]], [[Count of Provence|Provence]], and earlier Byzantine dynasties. Sometime after 1191, his niece [[Eudokia Angelina]] was married to [[Stefan Prvovenčani of Serbia|Stefan]], son of Grand Prince [[Stefan Nemanja]] of [[Serbia]].

Isaac inaugurated his reign with a decisive victory over the [[Normans|Norman]]<ref name=EB1911>{{Cite EB1911 |wstitle=Isaac II. (Angelus) |volume=14 |page=858}}</ref> King of [[Kingdom of Sicily|Sicily]], [[William II of Sicily|William II]], at the [[Battle of Demetritzes]] on 7 November 1185. William had invaded the [[Balkans]] with 80,000 men and 200 ships towards the end of Andronikos I's reign.  Elsewhere Isaac's policy was less successful. In late 1185, he sent a fleet of 80 galleys to liberate his brother [[Alexios III Angelos|Alexius III]] from [[Acre, Israel|Acre]], but the fleet was destroyed by the Normans of Sicily. He then sent a fleet of 70 ships, but it failed to recover [[Cyprus]] from the rebellious noble [[Isaac Komnenos of Cyprus|Isaac Komnenos]], thanks to Norman interference. This fleet was misinterpreted by many in the Holy Land as naval support for the Muslim offensive in accordance with Isaac's alliance with [[Saladin]].<ref>{{cite journal|last1=Brand|first1=Charles M.|title=The Byzantines and Saladin, 1185–1192: Opponents of the Third Crusade|journal=Speculum|date=1962|volume=37|issue=2|pages=167–181|doi=10.2307/2849946|jstor=2849946|s2cid=162541416}}</ref><ref name=":0">{{Cite journal |last=Neocleous |first=Savvas |date=2010 |title=The Byzantines and Saladin: Opponents of the Third Crusade? |url=https://www.tandfonline.com/doi/full/10.1080/28327861.2010.12220246 |journal=Crusades |language=en |volume=9 |issue=1 |pages=87–106 |doi=10.1080/28327861.2010.12220246 |issn=1476-5276|url-access=subscription }}</ref> However the theory of a supposed alliance between Isaac and Saladin against the Third Crusade has been discredited by modern research.<ref name=":0" /><ref>{{Cite book |last=Harris |first=Jonathan |title=Byzantium and the Crusades |date=2014 |publisher=Bloomsbury |isbn=978-1780937366 |edition=2nd |location=London |pages=140–141 |oclc=891400633 |author-link=Jonathan Harris (historian)}}</ref>

Isaac's administration was dominated by two figures: his maternal uncle [[Theodore Kastamonites]], who became virtually a co-emperor and handled all civil government until his death in 1193; and his replacement, [[Constantine Mesopotamites]], who acquired even more influence over the emperor.

The oppressiveness of his taxes, increased to pay his armies and finance his marriage, resulted in a [[Vlach-Bulgarian Rebellion|Vlach-Bulgarian uprising]]<ref name=EB1911/> late in 1185. The rebellion led to the establishment of the [[Second Bulgarian Empire|Vlach-Bulgarian Empire]] under the [[Asen dynasty]]. In 1187 [[Alexios Branas]], the victor over the Normans, was sent against the Bulgarians but turned his arms against his master and attempted to seize Constantinople, only to be defeated and slain<ref name=EB1911/> by Isaac's brother-in-law Conrad of Montferrat. Also in 1187 an agreement was made with [[Venice]], in which the Venetian Republic would provide between 40 and 100 galleys at six months' notice in exchange for favorable trading concessions. Because each Venetian galley was manned by 140 oarsmen, there were about 18,000 Venetians still in the Empire even after [[Manuel I Komnenos|Manuel I]]'s arrests.<ref name="AD 1187">J. Norwich, ''A History of Venice'', 121</ref>

The Emperor's attention was next demanded in the east, where several claimants to the throne successively rose and fell. In 1189 the Holy Roman Emperor [[Frederick I, Holy Roman Emperor|Frederick I Barbarossa]] sought and obtained permission to lead his troops on the [[Third Crusade]] through the [[Byzantine Empire]].<ref name=EB1911/> But Isaac was suspicious that Barbarossa wished to conquer Byzantium: the reasons for this suspicious attitude were the diplomatic contact of Frederick with the Bulgarians and the Serbians, foes of the Byzantine Empire during this period, and also Barbarossa's previous feud with Manuel. The rumors of 1160s about a German invasion in the Byzantine Empire were still remembered in the Byzantine court during Isaac's reign.<ref>{{Cite book |title=Byzantium and the Crusades |last=Harris |first=Jonathan |publisher=Bloomsbury |date=2014 |isbn=978-1780937366 |edition=2nd |location=London |page=142 |oclc=891400633}}</ref> In retaliation Barbarossa's army occupied the city of [[Philippopolis (Thrace)|Philippopolis]] and defeated a Byzantine army of 3,000 men that attempted to recapture the city.<ref name="Treadgold658">W. Treadgold, ''A History of the Byzantine State and Society'', 658</ref> The Byzantine troops managed to constantly and successfully harass the Crusaders but a group of Armenians revealed to the Germans the strategic plan of the Byzantines. The Crusaders, who outnumbered the Byzantines, caught them unprepared and defeated them.{{sfn|Choniates|1984|p=224}} Thus compelled by force of arms, Isaac II was forced to fulfill his engagements<ref name=EB1911/> in 1190, when he released imprisoned German emissaries who were held in Constantinople, and exchanged hostages with Barbarossa, as a guarantee that the crusaders would not sack local settlements until they departed the Byzantine territory. In March 1190, Barbarossa left [[Adrianople]] to [[Gallipoli]] at the [[Dardanelles|Hellespont]] to embark to Asia Minor.{{sfn|Freed|2016|pp=494–504}}

In 1191, Isaac II launched a military expedition against [[Grand Principality of Serbia|Serbia]]. The Byzantine army was victorious in the battle at [[South Morava]] (autumn 1191), that led to the recovery of [[Niš]] and the consequent peace treaty.{{sfn|Komatina|2018|p=105-110}}

By 1196, Isaac II had allowed the once powerful Byzantine navy to decline to only 30 galleys.{{full citation needed|date=November 2021}}

The next five years were disturbed by continued warfare with [[Bulgaria]], against which Isaac led several expeditions in person.<ref name=EB1911/> In spite of their promising start these ventures had little effect, and on [[Battle of Tryavna|one occasion]] in 1190 Isaac barely escaped with his life. The Byzantines suffered yet another major defeat in the [[Battle of Arcadiopolis (1194)|Battle of Arcadiopolis]] in 1194. Isaac organized yet another offensive against Bulgaria in 1195 in cooperation with the Kingdom of Hungary, but [[Alexios III Angelos|Alexios Angelos]], the Emperor's older brother, taking advantage of Isaac's absence from camp on a hunting expedition, proclaimed himself emperor and was readily recognised by the soldiers as Emperor Alexios III on 8 (or 9) April.<ref name=":1">Schreiner, Peter (1977). [[iarchive:kleinchroniken2/page/181|''Die byzantinischen Kleinchroniken'' '''2'''.]] [[Corpus Fontium Historiae Byzantinae]] '''XII'''(2). pp. 181–182.</ref><ref>[[Niketas Choniates|Choniates 1984]], pp. 299–314. [[Alexios III Angelos|Alexios III]] ruled "8 years, 3 months and 10 days"; [[Alexios IV]] (alongside '''Isaac II''') "6 months and 8 days" and [[Alexios V]] "2 months and 16 days". Regnal dates for these emperors are calculated reckoning from the fall of Constantinople on 12 April 1204.</ref> Alexios then canceled the expedition and ordered Isaac to be [[political mutilation in Byzantine culture|blinded]] and imprisoned in Constantinople.<ref name=EB1911/>

==Second reign==
In 1203, after eight years of captivity, Isaac II was raised from the dungeon to the throne once more<ref name=EB1911/> after the arrival of the [[Fourth Crusade]] and the flight of Alexios III from the capital. Both his mind and body had been enfeebled by his blindness and confinement,<ref name=EB1911/> and his son [[Alexios IV Angelos]] was associated on the throne as the effective monarch.

Heavily beholden to the crusaders, Alexios IV was unable to meet his obligations and his vacillation caused him to lose the support of both his crusader allies and his subjects. At the end of January 1204 the influential court official [[Alexios V Doukas|Alexios Doukas ''Mourtzouphlos'']] took advantage of riots in the capital to imprison Alexios IV and seize the throne as Alexios&nbsp;V. At this point Isaac II died, allegedly of shock, while Alexios IV was strangled.

==Usurpers==
Several pretenders rose up and attempted to wrest the throne from Isaac during his reign. These included:
* [[Alexios Branas]]
* [[Theodore Mangaphas]]
* [[Pseudo-Alexios II]]
* Basil Chotzas&nbsp;– initiated a rebellion at Tarsia, near [[Nicomedia]]. Initially he had some success, but before long he was seized, blinded, and cast into prison.{{sfn|Choniates|1984|p=233}}
* Isaac Comnenus (nephew of [[Andronicus I Comnenus]])&nbsp;– escaped from prison and fled to [[Hagia Sophia]], where he proceeded to incite a mob. Eventually captured, he was suspended in the air and tortured in order to obtain the names of his accomplices. His internal organs suffered severe damage and he died the next day.{{sfn|Choniates|1984|p=314}}
* Constantine Tatikios&nbsp;– secretly established a group of 500 individuals who hid in [[Constantinople]]. Though they managed to escape detection for some considerable time, he was informed against, captured, and blinded.{{sfn|Choniates|1984|p=314}}

==Historical reputation==
Isaac has the reputation as one of the most unsuccessful rulers to occupy the Byzantine throne.<ref name=EB1911/> Surrounded by a crowd of slaves, mistresses, and flatterers, he permitted his empire to be administered by unworthy favourites, while he squandered the money wrung from his provinces on costly buildings and expensive gifts to the churches of his metropolis.<ref name=EB1911/> In 1185, the Empire lost [[Lefkada]], [[Kefallonia]], and [[Zakynthos]] to the [[Normans]]. In the same year the [[Second Bulgarian Empire|Vlach–Bulgarian Empire]] was restored after the rebellion of the brothers [[Ivan Asen I of Bulgaria|Asen]] and [[Peter IV of Bulgaria|Peter]], thus losing Moesia and parts of Thrace and Macedonia. After that [[Cilicia]] was retaken by the [[Armenian Kingdom of Cilicia|Armenians]], and [[Cyprus]] wrested from the empire by the [[Crusaders]].

==Family==

===First marriage===
Isaac II's first wife's name, Herina or Eirene (i.e., Irene), is found on the necrology of [[Speyer Cathedral]], where their daughter Irene is interred.<ref>Klaniczay, Gabor. ''Holy Rulers and Blessed Princesses: Dynastic Cults in Medieval Central Europe''. Translated by Eva Palmai. Cambridge, England: Cambridge University Press, 2002, pp. 99–100.</ref> The first wife of Isaac II is usually considered to be a Byzantine noblewoman of unknown name. In an Italian edition of the chronicle of Nicetas Choniates "Greatness and catastrophe of Byzantium" can be found an interesting note to the XIV Book. The names of Isaac II's first wife and eldest daughter, unknown from Byzantine sources, are found in an obituary in the Cathedral of Speyer, the pantheon of German kings. Here, the wife of Philip of Swabia is said to be the daughter of Isaac and Irene (there is reference to the following article: R. Hiestand, Die erste Ehe Isaaks II. Angelos und seine Kinder, in Jahrbuch der Osterreichischen Byzantinisk, XLVII 1997 pp.&nbsp;199–208). This Irene could be identified with the daughter of George Palaiologos Doukas Komnenos and wife Aspae, Bagratid Princess of Ossetia, according to [[Leontii Voitovych]] and [[Aleksandr Mayorov]].;<ref>Budzinsky, O. ''[https://web.archive.org/web/20150718223713/http://zbruc.eu/node/6269 The mystery of King is covered in name]''. Zbruch. 23 April 2013</ref> the son of this ones, Andronikos Palaiologos Komnenodoukas, is known as gambrox (''γαμβρός'') of Isaac II. In alternative, Isaac's wife was possibly daughter of Andronikos I Komnenos, Byzantine Emperor (died 1185). A potential foreign origin is also given to her due to having the same name as her daughter, contrary to long-standing Greek custom. A more recent examination (2011) of the extant documentation presents the case that Irene was very likely a [[Tornikina]] and daughter of [[Demetrios Tornikes]], [[logothetes tou dromou]] and [[sebastos]] of Isaac II, and an unknown Mallakis.<ref>[[Christian Settipani]], "Byzance et L’Étranger (2021), p. 141</ref>

Their third child was born in 1182 or 1183 and she was dead or divorced by 1185, when Isaac remarried.

Their children were: 
* [[Anna-Euphrosyne|Anna-Euphrosyne Angelina]], married to [[Roman the Great]].
* [[Irene Angelina]] (c. 1181–1208), married first to [[Roger III of Sicily]] and secondly to [[Philip of Swabia]]. Isaac is the ancestor of all European monarchs now reigning through Irene's children by Philip. 
* [[Alexios IV Angelos]] (c. 1182–1204).

===Second marriage===
By his second wife, [[Margaret of Hungary]] (who took the baptismal name "Maria"), Isaac II had two sons: 
* Manuel Angelos (b. after 1195&nbsp;– d. 1212), he was evidently the elder son, being contemplated in 1205 to ascend the Byzantine throne<ref>{{cite book |title=The Princes of Achaia and the Chronicles of Morea: A Study of Greece in the Middle Ages |volume=1 |first=Rennell |last=Rodd |year=1907 |url=https://books.google.com/books?id=-ubQAAAAMAAJ&pg=PA78}}</ref>
* [[John Angelus of Syrmia|John Angelos]] (b. ca. 1193&nbsp;– d. 1259). He migrated to Hungary and ruled over [[Syrmia]] and [[Bač, Serbia|Bacs]] (1227–42) as a vassal of king [[Béla IV of Hungary]].

==Ancestry==
{{ahnentafel
|collapsed=yes |align=center
|boxstyle_1=background-color: #fcc;
|boxstyle_2=background-color: #fb9;
|boxstyle_3=background-color: #ffc;
|boxstyle_4=background-color: #bfc;
|boxstyle_5=background-color: #9fe;
|1= 1. '''Isaac II Angelos'''
|2= 2. [[Andronikos Angelos Doukas]]
|3= 3. [[Euphrosyne Kastamonitissa]]
|4= 4. [[Constantine Angelos]]
|5= 5. [[Theodora Komnene (daughter of Alexios I)|Theodora Komnene]]
|10= 10. [[Alexios I Komnenos]]
|11= 11. [[Irene Doukaina]]
}}

==See also==
{{portal|Byzantine Empire}}
* [[List of Roman emperors]]

==References==
{{Reflist|2}}

==Sources==
{{refbegin|2}}
* Angold, Michael, ''The Byzantine Empire: A Political History, 1025–1204'', 2nd ed. (London and New York, 1997). {{ISBN|978-0582294684}}
* {{Byzantium Confronts the West}}
* {{cite book |title=Medieval East Central Europe in a Comparative Perspective: From Frontier to Lands in Focus |chapter=Between empires: South-eastern Europe and the two Roman Empires in the Middle Ages |first=Stefan |last=Burkhardt  |editor-first1=Gerhard |editor-last1=Jaritz |editor-first2=Katalin |editor-last2=Szende |publisher=Routledge |year=2016 }}
* {{Cite book|last=Choniates|first=Niketas|url=https://archive.org/details/o-city-of-byzantium-annals-of-niketas-choniates-ttranslated-by-harry-j-magoulias-1984/mode/2up|title=O city of Byzantium: Annals of Niketas Choniatēs|publisher=Wayne State University Press|year=1984|isbn=0814317642|translator=Magoulias, Harry J.|oclc=10605650|author-link=Niketas Choniates|orig-year=1207}}
*{{cite book |last=Freed |first=John |year=2016 |title=Frederick Barbarossa: The Prince and the Myth |publisher=Yale University Press |location=New Haven, CT |isbn=978-0-300-122763 }}
* {{cite book |title=Constantinople: Capital of Byzantium |first=Jonathan |last=Harris |publisher=Hambledon Continuum  |year=2007  }}
* Harris, Jonathan, ''Byzantium and the Crusades'' (London: Bloomsbury, 2nd ed., 2014). {{ISBN|978-1-78093-767-0}}
* Harris, Jonathan, 'Collusion with the infidel as a pretext for military action against Byzantium', in ''Clash of Cultures: the Languages of Love and Hate'', ed. Sarah Lambert and Helen Nicholson (Turnhout, 2012), pp.&nbsp;99–117
* Head, C. (1980) ''Physical Descriptions of the Emperors in Byzantine Historical Writing'', Byzantion, Vol. 50, No. 1 (1980), Peeters Publishers, pp.&nbsp;226–240
* Hiestand, Rudolf, 'Die Erste Ehe Isaaks II Angelus und Seine Kinder', ''Jahrbuch der Osterreichischen Byzantinistik'', 47 (1997).
* {{Oxford Dictionary of Byzantium}}
* {{Cite journal|last=Komatina|first=Ivana|title=On the attack of the Hungarian king Bela III on Serbia in light of the letter of emperor Isaac II to pope Celestine III|journal=Facta Universitatis: Philosophy, Sociology, Psychology and History|year=2018|volume=17|number=2|pages=105–110|url=http://casopisi.junis.ni.ac.rs/index.php/FUPhilSocPsyHist/article/viewFile/4138/2597|archive-url=https://web.archive.org/web/20200901071426/http://casopisi.junis.ni.ac.rs/index.php/FUPhilSocPsyHist/article/viewFile/4138/2597 |archive-date=1 September 2020 }}
* {{Cite journal|last=McDaniel|first=Gordon L.|title=On Hungarian-Serbian Relations in the Thirteenth Century: John Angelos and Queen Jelena|journal=Ungarn-Jahrbuch|year=1984|volume=12 (1982–1983): München, 1984|pages=43–50|url=http://epa.oszk.hu/01500/01536/00012/pdf/UJ_1982_1983_043-050.pdf}}
* {{Cite book|last=Moravcsik|first=Gyula|author-link=Gyula Moravcsik|title=Byzantium and the Magyars|year=1970|location=Budapest|publisher=Akadémiai Kiadó|url=https://books.google.com/books?id=uyAiAAAAMAAJ}}
* {{Cite book|last=Ostrogorsky|first=George|author-link=George Ostrogorsky|year=1956|title=History of the Byzantine State|location=Oxford|publisher=Basil Blackwell|url=https://books.google.com/books?id=Bt0_AAAAYAAJ}}
* {{cite web|url=https://www.academia.edu/31064036 |first=David |last=Savignac|title=The Medieval Russian Account of the Fourth Crusade – A New Annotated Translation}}
* {{A History of the Byzantine State and Society}}
* {{Η Γενεαλογία των Κομνηνών | volume = B | pages = 807–840}}
{{refend}}

==External links==
* [http://www.ellopos.net/elpenor/vasilief/foreign-policy-angeli.asp Foreign policy of the Angeli] from ''A History of the Byzantine Empire'' by Al. Vasilief

{{S-start}}
{{S-hou|[[Angelus (dynasty)|Angelid dynasty]]|September|1156|January|1204}}
{{S-reg|}}
{{S-bef|before=[[Andronikos I Komnenos]]}}
{{S-ttl|title=[[List of Byzantine emperors|Byzantine emperor]]|years=1185–1195}}
{{S-aft|after=[[Alexios III Angelos]]}}
{{S-bef|before=Alexios III Angelos}}
{{S-ttl|title=Byzantine emperor|years=1203–1204
|regent1=[[Alexios IV Angelos]]|years1=1203–1204}}
{{S-aft|after=[[Alexios V|Alexios V Doukas]]}}
{{s-end}}

{{Roman emperors}}
{{Authority control}}

{{DEFAULTSORT:Angelos, Isaac 02}}
[[Category:Angelid dynasty|Isaac 02]]
[[Category:12th-century Byzantine emperors|Isaac 02]]
[[Category:13th-century Byzantine emperors]]
[[Category:12th-century rebels]]
[[Category:1156 births|Isaac Angelos]]
[[Category:1204 deaths|Isaac Angelos]]
[[Category:Christians of the Third Crusade]]
[[Category:Christians of the Fourth Crusade|Isaac Angelos]]
[[Category:Byzantine people of the Byzantine–Bulgarian Wars]]