▁by ▁Louis ▁IX ▁in ▁ 1 2 7 0 , ▁again ▁sail ing ▁from ▁A ig ues - M ort es , ▁initially ▁to ▁come ▁to ▁the ▁aid ▁of ▁the ▁rem n ants ▁of ▁the ▁cr us ader ▁states ▁in ▁Sy ria . ▁However , ▁the ▁cr us ade ▁was ▁di vert ed ▁to ▁Tun is , ▁where ▁Louis ▁spent ▁only ▁two ▁months ▁before ▁dying . ▁For ▁his ▁efforts , ▁Louis ▁was ▁later ▁canon ised . ▁ ▁N inth ▁Cr us ade , ▁ 1 2 7 1 – 1 2 7 2 ▁▁▁ ▁The ▁future ▁Edward ▁I ▁of ▁England ▁under to ok ▁another ▁expedition ▁against ▁Ba ib ars ▁in ▁ 1 2 7 1 , ▁after ▁having ▁accompanied ▁Louis ▁on ▁the ▁E ighth ▁Cr us ade . ▁The ▁N inth ▁Cr us ade ▁was ▁de emed ▁a ▁failure ▁and ▁ended ▁the ▁Cr us ades ▁in ▁the ▁Middle ▁East . ▁ ▁In ▁their ▁later ▁years , ▁faced ▁with ▁the ▁threat ▁of ▁the ▁Egypt ian ▁Mam lu ks , ▁the ▁Cr us aders ' ▁hopes ▁rest ed ▁with ▁a ▁Franco - M ong ol ▁al liance . ▁Although ▁the ▁Mong ols ▁successfully ▁attacked ▁as ▁far ▁south ▁as ▁Dam asc us ▁on ▁these ▁campaign s , ▁the ▁ability ▁to ▁effectively ▁coordinate ▁with ▁Cr us ades ▁from ▁the ▁west ▁was ▁repeatedly ▁fr ustr ated ▁most ▁not ably ▁at ▁the ▁Battle ▁of ▁Ain ▁J al ut ▁in ▁ 1 2 6 0 . ▁The ▁Mam lu ks ▁eventually ▁made ▁good ▁their ▁p ledge ▁to ▁clean se ▁the