In 1432 his country was invaded by a large Ottoman army. Dan was defeated and killed in battle. He was succeeded by Alexandru I Aldea, a son of Mircea cel Batran, who would reign until his death from illness in 1436, and with him being replaced by Vlad II Dracul, father to Vlad Tepes. Dan II's son, Basarab II, would replace Vlad Dracul's son Mircea II in 1443. However, his son lacked the military ability of his father and would lose the throne within a year to Vlad Dracul.