He replaced Polish vassal Simion Movilă on the throne in Bucharest after the brief occupation of Wallachia by the troops of hetmans Jan Zamoyski and Jan Karol Chodkiewicz.
Radu Lupu | Radu Albot | Radu Paisie | Radu Mihăileanu | Radu Berceanu | Radu Filipescu | Radu Varia | Radu Negru | Radu Mihnea | Radu II of Wallachia | Radu Gioan Bey | Radu Florescu | Radu cel Frumos | Radu Aldulescu |
Joined by Radu Mihnea of Wallachia, Crimean Tatars and another army from Hungary, they reached Transylvania in October.