Dmitriy Donskoy was a prominent prince of Moscow in the 14th century, known for his leadership during the struggle against Mongol rule. He reigned from 1359 to 1389 and is celebrated for his military victories, particularly the decisive battle at Kulikovo Field in 1380, which marked a significant turning point in Russian history. His efforts helped to consolidate the power of the Grand Duchy of Moscow and laid the groundwork for the eventual unification of Russia. Dmitriy Donskoy is often remembered as a national hero and a symbol of resistance against foreign domination.