Complex sentence: After Alexander's death in Babylon, Arrhidaeus was proclaimed king by the Macedonian army in Asia; however, he was a mere figurehead, and a pawn of the powerful generals, one after the other.
Split into simpler sentences: After Alexander's death in Babylon, Arrhidaeus was proclaimed king by the Macedonian army in Asia. However, he was a mere figurehead, and a pawn of the powerful generals, one after the other.