Complex sentence: Michael IX Palaeologus, (c.1277--1320) father of Byzantine Emperor Andronicus III Palaeologus, son of Andronicus II and Anna of Hungary.
Split into simpler sentences: Michael IX Palaeologus, (c.1277--1320), father of Byzantine Emperor Andronicus III Palaeologus. He was a son of Andronicus II Palaeologus and Anna of Hungary.