Irene of Hungary was a Byzantine empress by marriage to John II Komnenos. She is venerated as a saint.
Mosaic portrait of Empress Irene on the Comnenos mosaic in the Hagia Sophia, Constantinople (now Istanbul)
John II Komnenos or Comnenus was Byzantine emperor from 1118 to 1143. Also known as "John the Beautiful" or "John the Good", he was the eldest son of Emperor Alexios I Komnenos and Irene Doukaina and the second emperor to rule during the Komnenian restoration of the Byzantine Empire. As he was born to a reigning emperor, he had the status of a porphyrogennetos. John was a pious and dedicated monarch who was determined to undo the damage his empire had suffered following the Battle of Manzikert, half a century earlier.
Mosaic of John II at the Hagia Sophia
John II (left) and his eldest son Alexios, crowned by Christ. Byzantine manuscript, early 12th century
Isaac Komnenos, mosaic of from the Chora Church
A letter from John II to Pope Innocent II