Radu II was a ruler of the principality of Wallachia in the 15th Century, ruling for 4 terms, each time preceded by Dan II, his rival for the throne, and each time succeeded by him. Of those 4 periods on the throne of Wallachia, all were within a period of only 7 years, and 3 terms lasted less than a year. He ruled:
RaduII Chelul (RaduII the Bald) was a ruler of the principality of Wallachia in the 15th Century, ruling for 4 terms, each time preceded by Dan II, his rival for the throne, and each time succeeded by him.
His short intervals of rulership are marked by frequent and violent clashes with his rival, and at the same time cousin, Dan II, for the throne of the principality.
RaduII is last mentioned in the spring of 1427, when Dan II attacks him from Transylvania, retakes the throne, and most probably kills him.
His parallel conflicts with the pretenders Radu cel Frumos and Laiotă Basarab brought occupations of Wallachia by the troops of Matthias Corvinus of Hungary and the Moldavian prince Stephen III (1473; 1476-1477).
Radu the Great (1495-1508) reached several compromises with the boyars, ensuring a period of internal stability that contrasted his clash with Bogdan the Blind of Moldavia.
In 1834, Wallachia's throne was occupied by Alexandru II Ghica — a move in contradiction with the Adrianople treaty, as he had not been elected by the new Legislative Assembly; removed by the suzerains in 1842, he was replaced with an elected prince, Gheorghe Bibescu.