Career
In 1197 Ivanko, who was a Vlach according to the terminology used by Niketas Choniates, married Theodora Angelina, the daughter of Anna Angelina and the sebastokrator Isaac Komnenos. Theodora"s father had died in Bulgarian captivity not many months earlier. The emperor"s sons-in-law Alexios Palaiologos and Theodore Laskaris marched against Ivanko in 1200, and he was eventually captured when Alexios promised not to harm him in a peace council but then took him prisoner.