Family
 Isaac II Angelos, Emperor of the Byzantine Empire 1) 2)Born Sep 1156 Died Jan 1203/04, approximately 46 years Notes: Married secondly to Margaret of Hungary, with whom he had two children. Isaac had two spells as Byzantine Emperor - 1185-1195 - and 1203-1204. Isaac came to the throne after instigating a popular revolt against Andronikos I Komnenos, who was a deeply unpopular ruler. While initial successful, having military victories in the Balkans, his subsequent defeats at sea, and against a Bulgarian uprising, forced him to raise taxes. Later in the decade he was made to permit the third crusade to pass through his lands. Further failed ventures against the Bulgarians, resulted in his older brother Alexios III declaring himself Emperor when Isaac was out of camp in 1195 - after which the expeditions were cancelled, and Isaac was blinded Isaac was reinstated to the throne, after Alexios III fled the capital after the arrival of the fourth crusade. Within a year, he was once more deposed - by Alexios IV - taking advantage of Isaac's dispopularity with the crusading forces, and his subjects. Married/ Related to:  Unknown 1)Notes: Irene's mother is recorded as "Unknown" in Alicia Simpson's historiography of Niketas Choniates. Note that Isaac II Angelos married twice, with his second wife being "Margaret of Hungary". His first wife is sometimes called Eirene. Peter Stewart has, however, explained why that is unlikely to be the case: "The evidence that Isaac's first wife was named Eirene must be rejected too - this comes only from a necrology of Speyer cathedral, where the mother of Isaac's daughter Eirene was called "Herina". The compiler in Germany almost certainly did not know the mother's name and assumed it could the same as the daughter's. However, he also did not realise that this would have flouted a very well-established Byzantine custom of never giving children the name of a parent. Consequently Eirene is the one name we can be virtually certain was not that of Eirene Angelina's mother." https://groups.google.com/g/soc.genealogy.medieval/c/ipMwxTKPCSY/m/MdtWA6BaDwAJ. Child: 1. Irene AngelinaBorn ± 1181 Died 1208, approximately 27 years Notes: Firstly, married Roger son of Tancred of Sicily. After Sicily's capture by Holy Roman Emperor Henry VI, Irene was captured and married to his younger brother, Philip of Swabia. Following his murder, she retired to Hohenstaufen castle, where she died following childbirth, circa two months later. | |||
Sources
1) Source: Niketas Choniates: A Historiographical Study "Fig 2. Selected Genealogy of the Angeloi". Reference: Page 331 (Questionable reliability of evidence)2) Source: O City of Byzantium: Annals of Niketas Choniates "At the fall of Sicily, Emperor Isaakios’s daughter Irene was taken captive along with others [29 December 1194], She was given in marriage to Philip [25 May 1197], the king of Germany’s brother, born of the seed of fornication, after she had lost the husband of her virginity [Roger, d. 24 December 1193], who ruled Sicily as tyrant after the death of his father Tancred [20 February 1194],". Reference: Page 264 (Data from secondary evidence)