Complex sentence: Antigonus, son of Menophilus was a Seleucid official (nauarchos) under king Alexander (I or II), in the mid- 2nd century BC. He is known from an inscription found in the city of Miletus.
Split into simpler sentences: Antigonus, son of Menophilus was a Seleucid official (nauarchos). He served under king Alexander (I or II), in the mid- 2nd century BC. He is known from an inscription found in the city of Miletus.