Kaan (also Qadan) was the son of the second Great Khan of the Mongols Ögedei and a concubine. He was the grandson of Genghis Khan and the brother of Güyük Khan. During the Mongol invasion of Europe, Kadan, along with Baidar (son of Chagatai Khan) and Orda Khan (the eldest brother of Batu Khan and khan of the White Horde), led the Mongol diversionary force that attacked Poland, while the main Mongol force struck the Kingdom of Hungary.