Complex sentence: He quelled rebelling feudal lords as well as the Zamorin of Calicut and Quilon in the south; he invaded the island of Lanka and became overlord of the kings of Burma at Pegu and Tanasserim.
Split into simpler sentences: He quelled rebelling feudal lords as well as the Zamorin of Calicut and Quilon in the south. He invaded the island of Lanka and became overlord of the kings of Burma at Pegu and Tanasserim.