Michael Palaiologos, born in 1223, was the son of Andronikos Palaiologos, "megas domestikos" in the Empire of Nicaea. Through the preceding century or so of Palaiologan marriages to other imperial families, his ancestry could be traced back to the three most recent dynasties that had ruled the empire before the Fourth Crusade (Doukas, Komnenos and Angelos). In his youth, Michael had served as the governor of the towns of Melnik and Serres in Thrace, and though he and his family were distinguished among the aristocracy, he was frequently mistrusted by the ruling Laskaris dynasty. In 1253, Emperor John III Doukas Vatatzes accused him of plotting against the throne, though Michael escaped the accusation without punishment following a trial by ordeal of holding a red-hot iron. Though Michael continued to be mistrusted even after this, he married John III's grandniece Theodora Vatatzaina and was appointed as the "megas konostaulos" of the Latin mercenaries employed by the empire.