ais un ▁Khan ' s ▁brother , ▁Ag bar jin , ▁the ▁title ▁of ▁k han ▁instead . ▁Es en ▁and ▁Ag bar jin ▁bes ie ged ▁Kar ak orum ▁where ▁T ais un ▁Khan ▁was ▁located . ▁Because ▁most ▁of ▁the ▁eastern ▁Mong ols ▁desert ed ▁to ▁the ▁O ir ats , ▁the ▁Khan ' s ▁troops ▁were ▁defeated ▁in ▁Tur fan ▁and ▁he ▁fled ▁towards ▁the ▁Kh ent ii ▁Khan ▁mountains ▁and ▁the ▁K her len ▁River ▁with ▁a ▁few ▁of ▁his ▁ent ou rage . ▁T ais un ▁Khan ▁was ▁killed ▁in ▁ 1 4 5 3 ▁by ▁his ▁former ▁father - in - law , ▁Ts ab dan , ▁while ▁fle eing . ▁Ts ab dan ▁later ▁defect ed ▁to ▁Es en . ▁ ▁Family ▁ ▁T og ht oa ▁B uk ha ▁had ▁two ▁younger ▁brothers , ▁Ag bar jin ▁and ▁Mand u ul . ▁ ▁His ▁known ▁w ives ▁and ▁children ▁included : ▁An ▁O irat ▁prin cess , ▁daughter ▁of ▁T og han ▁ta ishi . ▁She ▁bore ▁a ▁son ▁named ▁Abd an . ▁Al tag ana ▁of ▁the ▁K hor lad ▁tribe . ▁The ▁Khan ▁and ▁her ▁son ▁was ▁Mol on ▁( M ul an ). ▁Sam ar ▁ta if u ▁who ▁bore ▁Mark ör g is . ▁ ▁See ▁also ▁ ▁List ▁of ▁k h ans ▁of ▁the ▁Northern ▁Y uan ▁dynast y ▁ ▁References ▁ ▁Category : N or thern ▁Y uan ▁r ul ers ▁Category : 1 4 1 6 ▁birth s