Radu Leon was ruler of Wallachia from 1664 to 1669. He had the byname Radu the Oyster-seller. Son of Wallachian ruler Leon Tomşa, and putative grandson of Ştefan Tomşa, ruler of Moldavia, Radu Leon replaced the deposed Grigore I Ghica in December 1664. Supposedly barely able to speak Romanian, Radu`s authority relied on the support of the Phan....