Romanian historical tradition associates the foundation of Wallachia with the "dismounting of Radu Negru" who crossed the Carpathians from Transylvania accompanied by "Romanians, papists, Saxons, and all kind of men" around 1290. The first sovereign of Wallachia recorded in contemporary sources was Basarab I who obtained international recognition for the independence of the principality by his victory over Charles I of Hungary in the battle of Posada on November 12, 1330. The princes of Wallachia were chosen from among his descendants – either legitimate, or not – by an assembly of the "boyars" until the 16th century.