Иоанн III Дука Ватац
In 1253, Michael VIII Palaiologos married Theodora Palaiologina, a grandniece of John III Doukas Vatatzes, Emperor of Nicaea. Orphaned in childhood, she was raised by her great-uncle John III, who was said to have "loved her like a daughter", and who arranged for her marriage to Michael. Their children were: