, ▁and ▁the ▁south western ▁Holy ▁Roman ▁Empire . ▁ ▁The ▁Bog om ils ▁were ▁strong ▁in ▁the ▁B alk ans , ▁and ▁became ▁the ▁official ▁religion ▁supported ▁by ▁the ▁Bos n ian ▁k ings . ▁ ▁D ual ists ▁believed ▁that ▁historical ▁events ▁were ▁the ▁result ▁of ▁struggle ▁between ▁a ▁good ▁force ▁and ▁an ▁evil ▁force ▁and ▁that ▁evil ▁ruled ▁the ▁world , ▁though ▁it ▁could ▁be ▁controlled ▁or ▁defeated ▁through ▁asc etic ism ▁and ▁good ▁works . ▁ ▁Al big ens ian ▁Cr us ade , ▁Simon ▁de ▁Mont fort , ▁Mont ség ur , ▁Ch âteau ▁de ▁Qu é rib us ▁ ▁Wald ens ians ▁Peter ▁Wal do ▁of ▁Lyon ▁was ▁a ▁wealth y ▁merchant ▁who ▁gave ▁up ▁his ▁rich es ▁around ▁ 1 1 7 5 ▁after ▁a ▁religious ▁experience ▁and ▁became ▁a ▁pre acher . ▁He ▁founded ▁the ▁Wald ens ians ▁which ▁became ▁a ▁Christian ▁sect ▁bel ieving ▁that ▁all ▁religious ▁practices ▁should ▁have ▁script ural ▁basis . ▁Wal do ▁was ▁denied ▁the ▁right ▁to ▁pre ach ▁his ▁ser m ons ▁by ▁the ▁Third ▁Later an ▁Council ▁in ▁ 1 1 7 9 , ▁which ▁he ▁did ▁not ▁obey ▁and ▁continued ▁to ▁speak ▁freely ▁until ▁he ▁was ▁ex communic ated ▁in ▁ 1 1 8 4 . ▁Wal do ▁was ▁critical ▁of ▁the ▁Christian ▁cler gy ▁saying ▁they ▁did ▁not ▁live ▁according ▁to ▁the ▁word . ▁He ▁rejected ▁the ▁practice ▁of ▁s elling ▁indul gen ces , ▁as ▁well ▁as ▁the ▁common ▁saint ▁cult ▁practices ▁of ▁the ▁day