- de - L éon , ▁in ▁France ▁. Saint - Pol - de - L éon ▁() ▁is ▁a ▁commune ▁in ▁the ▁Fin ist ère ▁department ▁in ▁Brit t any ▁in ▁north - western ▁France . ▁It ▁is ▁noted ▁for ▁the ▁ 1 3 th - century ▁c athedral ▁which ▁stands ▁on ▁the ▁site ▁of ▁the ▁original ▁church ▁founded ▁by ▁Saint ▁Paul ▁Aur éli en ▁in ▁the ▁ 6 th ▁century ▁and ▁the ▁Notre - D ame ▁du ▁Kre isk er ▁Chap el , ▁with ▁its ▁ 8 0 - met re - high ▁sp ire , ▁the ▁highest ▁in ▁Brit t any . ▁It ▁was ▁also ▁the ▁scene ▁of ▁the ▁a ▁battle ▁during ▁the ▁Bre ton ▁War ▁of ▁Su cc ession , ▁where ▁the ▁Mont fort ists ▁and ▁their ▁English ▁al lies ▁defeated ▁an ▁army ▁led ▁by ▁Charles ▁of ▁Blo is . ▁ ▁History ▁▁ ▁It ▁was ▁formerly ▁the ▁seat ▁of ▁the ▁Bishop ▁of ▁Saint - Pol - de - L éon , ▁a ▁bishop ric ▁established ▁in ▁the ▁ 6 th ▁century ▁but ▁abol ished ▁under ▁the ▁Con cord at ▁of ▁ 1 8 0 1 , ▁when ▁its ▁territory ▁was ▁transferred ▁to ▁the ▁Dioc ese ▁of ▁Qu imper . ▁ ▁It ▁is ▁dedicated ▁to ▁its ▁ 6 th - century ▁founder , ▁the ▁first ▁bishop ▁Saint ▁Paul ▁A ure li an . ▁He ▁was ▁originally ▁from ▁Wales ▁and ▁is ▁considered ▁to ▁have ▁been ▁the ▁first ▁bishop ▁of ▁the ▁Lé on ▁area . ▁We ▁know ▁something ▁of ▁Aur éli en