Batu Khan (/ˈbɑːtuː ˈkɑːn/; Mongolian: Бат хан, хан Батый; c. 1207–1255) was a Mongol ruler and founder of the Ulus of Jochi (or Golden Horde), the sub-khanate of the Mongol Empire. Batu was a son of Jochi and grandson of Genghis Khan. His ulus was the chief state of the Golden Horde (or Kipchak Khanate), which ruled Rus and the Caucasus for around 250 years, after also destroying the armies of Poland and Hungary. "Batu" or "Bat" literally means "firm" in the Mongolian language. After the deaths of Genghis Khan's sons, he became the most respected prince called agha (elder brother) in the Mongol Empire.
Read more about Batu Khan: Early Years, Conquest of Rus, Invasion of Central Europe, Viceroy and Struggle With Güyük, Möngke and Batu, Family and Legacy