Basarab III cel Btrn ("the Old"), also known as Laiot Basarab or Basarab Laiot (? 22 December 1480) was Voivode of the principality of Wallachia in the 1470s, repeating the achievement of Dan II in being elected by the boyars as voivode on five occasions. Moreover, he succeeded the same ruler (Radu cel Frumos in Basarab's case) on four occasions. Two of his reigns also surrounded the last period in which Vlad III the Impaler ruled over Wallachia.

In 1479 he joined in the Battle of Breadfield, and died in December 1480.

Vlad III, commonly known as Vlad the Impaler (Romanian: Vlad Țepeș [ˈvlad ˈtsepeʃ]) or Vlad Dracula (; Romanian: Vlad Drăculea [ˈdrəkule̯a]; 1428/31 – 1476/77), 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. Vlad and his younger brother, Radu, were held as hostages in the Ottoman Empire in 1442 to secure their father's loyalty. Vlad's father and eldest brother, Mircea, were murdered after John Hunyadi, regent-governor of Hungary, invaded Wallachia in 1447. Hunyadi installed Vlad's second cousin, Vladislav II, as the new voivode. Hunyadi launched a military campaign against the Ottomans in the autumn of 1448, and Vladislav accompanied him. Vlad broke into Wallachia with Ottoman support in October, but Vladislav returned and Vlad sought refuge in the Ottoman Empire before the end of the year. Vlad went to Moldavia in 1449 or 1450, and later to Hungary.

Relations between Hungary and Vladislav later deteriorated, and in 1456 Vlad invaded Wallachia with Hungarian support. Vladislav died fighting against him. Vlad began a purge among the Wallachian boyars to strengthen his position. He came into conflict with the Transylvanian Saxons, who supported his opponents, Dan and Basarab Laiotă (who were Vladislav's brothers), and Vlad's illegitimate half-brother, Vlad the Monk. Vlad plundered the Saxon villages, taking the captured people to Wallachia where he had them impaled (which inspired his cognomen). Peace was restored in 1460.

The Ottoman Sultan, Mehmed II, ordered Vlad to pay homage to him personally, but Vlad had the Sultan's two envoys captured and impaled. In February 1462, he attacked Ottoman territory, massacring tens of thousands of Turks and Bulgarians. Mehmed launched a campaign against Wallachia to replace Vlad with Vlad's younger brother, Radu. Vlad attempted to capture the sultan at Târgoviște during the night of 16–17 June 1462. The sultan and the main Ottoman army left Wallachia, but more and more Wallachians deserted to Radu. Vlad went to Transylvania to seek assistance from Matthias Corvinus, King of Hungary, in late 1462, but Corvinus had him imprisoned.

Vlad was held in captivity in Visegrád from 1463 to 1475. During this period, anecdotes about his cruelty started to spread in Germany and Italy. He was released at the request of Stephen III of Moldavia in the summer of 1475. He fought in Corvinus's army against the Ottomans in Bosnia in early 1476. Hungarian and Moldavian troops helped him to force Basarab Laiotă (who had dethroned Vlad's brother, Radu) to flee from Wallachia in November. Basarab returned with Ottoman support before the end of the year. Vlad was killed in battle before 10 January 1477. Books describing Vlad's cruel acts were among the first bestsellers in the German-speaking territories. In Russia, popular stories suggested that Vlad was able to strengthen his central government only through applying brutal punishments, and a similar view was adopted by most Romanian historians in the 19th century. Vlad's patronymic inspired the name of Bram Stoker's literary vampire, Count Dracula.