Answer
Dmitry Donskoy was born in 1350, the Grand Prince of Moscow and Vladimir, and a key figure in Russian history. He is best known for his victory over the Mongol-Tatar forces in the Battle of Kulikovo in 1380, which marked a turning point in the struggle for Russian independence. Donskoy's reign also saw the expansion of the Muscovite state and the strengthening of its central authority.