John Hunyadi (Hungarian: Hunyadi János, Romanian: Ioan de Hunedoara; c. 1406 – 11 August 1456) was a leading Hungarian military and political figure in Central and Southeastern Europe during the 15th century. According to most contemporary sources, he was the son of a noble family of Romanian ancestry. He mastered his military skills on the southern borderlands of the Kingdom of Hungary that were exposed to Ottoman attacks.