IvanIII Vasilievich

I·van III Va·sil·ie·vich (īʹvən, ē-vänʹ; və-sĭlʹyə-vĭch'), Known as “Ivan the Great.” 1440-1505.

Grand duke of Muscovy (1462-1505). His victories against the Tartars laid the foundations for eventual Russian unity.

* * *