Definition: In this task, you will be presented with a text and a pronoun. You should write the name that the pronoun refers to. Position of the pronoun in the text is showed within two "_"s.
Input: He succeeded to his father's lands because his older brother Michael Komnenos had been abducted and imprisoned in Constantinople. After succeeding his father in or shortly before 1289, Constantine ruled Thessaly and Central Greece from Neopatras. He was assisted by his younger brother Theodore Angelos, who died c. 1300. Early in _his_ reign, Constantine's mother entered into negotiations with the Byzantine Empire and, in exchange for recognizing nominal Byzantine suzerainty, Constantine was invested with the court title of sebastokrat*r. <sep>, Pronoun: his

Constantine