raids of Europe until 1263.

The clan of Borolday is not clear. He was probably from one of four tribes that Genghis Khan (1162-1227) assigned to his eldest son, Jochi: the Sanchi'ud (or Salji'ud), Keniges, Uushin, and Je'ured clans.

Career

Serving under Jochi's successor and son, Batu Khan, Borolday's vanguard surprised and crushed the army of