Irene Palaiologina Empress of Bulgaria (b. 1349) Parents Theodora Palaiologina Michael VIII Palaiologos Children Michael Asan Maria Asanina Isaac Asan Constantine Asan Manuel Asan Andronikos Asen Theodora Palaiologina Asanina Siblings Konstantinos Palaiologos Euphrosyne Palaiologina Andronikos II Palaiologos Maria Palaiologina Eudokia Palaiologina Anna Palaiologina Theodorus Palaiologos Manuel Palaiologos Partners Ivan Asen III of Bulgaria