Vlad III, commonly known as Vlad the Impaler or Vlad Dracula, was Voivode of Wallachia three times between 1448 and his death in 1476/77. He is often considered one of the most important rulers in Wallachian history and a national hero of Romania.
He was the second son of Vlad Dracul, who became the ruler of Wallachia in 1436. From Wikipedia