Complex sentence: After Sawlon was assassinated in 1533, Thohanbwa became the undisputed king of Ava as well as chief of Mohnyin though he was not immediately accepted by other chiefs as the leader of the confederation.
Split into simpler sentences: After Sawlon was assassinated in 1533, Thohanbwa became the undisputed king of Ava as well as chief of Mohnyin. However, he was not immediately accepted by other chiefs as the leader of the confederation.