Answer
Ladislaus the Posthumous died on November 23, 1457 at the age of six. He was the only son of Matthias Corvinus and Beatrice of Naples, and he was the heir apparent to the Kingdom of Hungary. Ladislaus was born in Buda, and he was crowned king at the age of four. However, he died of dysentery in 1457, and his death led to a succession crisis in Hungary.