Trubecki

The Princes Trubetskoy
Russian: Князья Трубецкие
The Trubetskoy coat of arms
Ethnicity	Russian
Current region	Russia, France, United States, Germany, Switzerland
Earlier spellings	Trubchevsky
Place of origin	Grand Duchy of Lithuania
Members	Prince Dmitrii Troubetzkoy, d. 1625 Prince Sergei Petrovich Troubetzkoy, August 29, 1790 – November 22, 1860 Prince Paolo Troubetzkoy (Intra, Italy, 15 February 1866 — Pallanza, 12 February 1938) Prince Nikolai Troubetzkoy (Moscow, April 16, 1890 – Vienna, June 25, 1938)

The Trubetskoy family (English), Трубецкой (Russian), Трубяцкі (Belarusian), Trubecki (Polish), Trubetsky (Ruthenian), Трубецький (Ukrainian), Troubetzkoy (French), Trubezkoi or Trubetzkoy (German), is a Ruthenian Gediminid gentry family of Black Ruthenian stock, like many other princely houses of Grand Duchy of Lithuania, later prominent in Russian history, science, and arts. They are descended from Algirdas's son Demetrius I Starshy (1327 – 12 August 1399 Battle of the Vorskla River). They used the Pogoń Litewska coat of arms and the Trubetsky coat of arms.

Princes Troubetzkoy descend from Demetrius I Starshy, one of Algirdas's sons, who ruled the towns of Bryansk and Starodub. He was killed together with his elder sons in the Battle of the Vorskla River (1399). Demetrius's descendants continued to rule the town of Trubetsk (Troubchevsk) until the 1530s, when they had to convert to Roman Catholicism or leave their patrimony and settle in Moscow. They chose the latter, and were accepted with great ceremony at the court of Vasili III of Russia.