Alexius III Angelus Emperor of Byzantine Empire

Alexius III Angelus Emperor of Byzantine was born in 1143 in Constantinople, Turkey.  Alexius III Angelus Emperor of Byzantine's father was Andronicus Angelius and his mother was Euphrosyne Castamonita.  His paternal grandparents were Constantinus Angelus and Theodora Comnena; his maternal grandfather was Theodore Castamonitus. He had a brother named Isaac II Angelus Emperor of Byzantine.  He was the younger of the two children.  He died at the age of 68 in 1211 in Monastery at Nicaea, Turkey.

They had a daughter named Anna.