The Principality of Trubetsk (Russian: Трубецкое княжество) was a small, landlocked Rus' principality in Eastern Europe. In the later Middle Ages it was bordered by the Grand Duchy of Lithuania to its west and by Muscovy to its east. The Principality of Trubetsk (Troubchevsk) was a principality within modern Bryansk Oblast, about 50 miles (80 kilometres) southwest of Bryansk. A sub-principality under Principality of Novgorod-Seversk, it was elevated to the status of independent principality 1164 – 1196, 1202 – 1211, 1212 – 1240, 1357 – 1566.