Under Ivan I the city replaced Tver as a political center of Vladimir-Suzdal and became the only collector of taxes for the Mongol-Tatar rulers. By paying high taxes, Ivan worked out an important deal with the Khan. Unlike other principalities, Moscow was not divided among his sons but was passed whole to his oldest. However, Moscow did not like the Mongol rule. In 1380, prince Dmitry Donskoy of Moscow led a Russian army to an important victory over the Tatars in the Battle of Kulikovo. Only two years later Moscow was raided by the Khan Tokhtamysh. In 1480, Ivan III finally broke the Russians free from Tatar control, allowing Moscow to become the center of power in Russia. Under Ivan III the city became the capital of an empire that would eventually include all of Russia and other countries.