Mircea's reign is often considered to have brought stability to Wallachia. Found in a volatile region of the world, this principality's borders constantly shifted, but during Mircea's rule, Wallachia controlled the largest area in its history: from the Southern Carpathians in the north to the Danube in the south, and from today's Iron Gates on the Danube in the west to the Black Sea in the east. Also Mircea's titles show his lands: