Иоанн Дука
The Angelos line was continued by the descendants of Constantine's eldest son, the "sebastokrator" John Doukas. Like John, most of his descendants eschewed the surname "Angelos" and used either "Doukas" or "Komnenos Doukas", after which they are known in modern scholarship as the Komnenodoukai (Κομνηνοδούκαι).