Vlad III, Prince of Wallachia (1431–1476), was a member of the House of Drăculești, a branch of the House of Basarab, also known by his patronymic name: Dracula. He was posthumously dubbed Vlad the Impaler (Romanian: Vlad Țepeș pronounced [ˈvlad ˈt͡sepeʃ]), and was a three-time Voivode of Wallachia, ruling mainly from 1456 to 1462, the period of the incipient Ottoman conquest of the Balkans. His father, Vlad II Dracul, was a member of the Order of the Dragon, which was founded to protect Christianity in Eastern Europe. Vlad III is revered as a hero in Bulgaria as well for his protection of the Bulgarian population both south and north of the Danube. A significant number of Bulgarian common folk and remaining boyars (nobles) moved north of the Danube, recognized his leadership and became part of Wallachia, following his raids on the Ottomans.