King Ladislas of Naples, titular king of Jerusalem (February 11, 1377-August 6, 1414) was of the Angevin line, and was called "The Magnanimous".
Son of Charles III, he was the King of Naples from the age of nine (1386) under his mother's regency. Through the 1390s he was constantly opposed by Antipope John XXIII as well as by Louis II of Anjou, who contested the throne.
He became a skilled political and military leader, protector and controller of the Papacy of Innocent VII. He profited from disorder throughout Italy to greatly expand his kingdom and his power.
From 1390 he was also claimant to the throne of Hungary and Dalmatia.
His claim to the kingdom of Hungary was opposed by Sigismund Luxembourg, while he sold his rights on the kingdom of Dalmatia to the Venetian Republic for 100,000 Ducats in 1409.
He was also the prince of Taranto from 1406.
He was widely reputed to have been poisoned and died in Naples.