Complex sentence: Yuri Troubetzkoy (20 April 1668--8 September 1739) was stolnik of Peter the Great in 1676 and 1682, stolnik in the Tsar's apartment in 1712, the governor of Belgorod since 1727, a general-poruchik, senator since 1730, Prince.
Split into simpler sentences: Yuri Troubetzkoy (20 April 1668--8 September 1739) was a Russian military and politician. He was stolnik of Peter the Great in 1676 and 1682, stolnik in the Tsar's apartment in 1712, the governor of Belgorod since 1727, a general-poruchik, senator since 1730, Prince.