▁as ▁du kes ▁When ▁the ▁peace ▁was ▁se aled ▁in ▁ 1 3 6 5 , ▁it ▁was ▁st ip ulated ▁that ▁the ▁Mont fort ▁branch ▁would ▁succeed ▁in ▁Brit t any ▁subject ▁to ▁the ▁restrictions ▁of ▁Sal ic ▁law ▁and ▁in ▁the ▁case ▁of ▁their ▁male ▁line ▁going ▁ext inct , ▁the ▁he irs ▁of ▁Jo anna ▁of ▁Pent hi è vre ▁will ▁succeed ▁the ▁last ▁male ▁Mont fort ist ▁du ke . ▁The ▁Bre ton ▁du cal ▁house ▁and ▁many ▁Bre ton ▁noble ▁families ▁had ▁followed ▁a ▁semi - Sal ic ▁tradition ▁which ▁permitted ▁a ▁daughter ▁to ▁inherit ▁from ▁her ▁father . ▁The ▁Blo is - P ent hi è vre ▁family ▁received ▁more ▁est ates ▁in ▁Brit t any ▁as ▁partial ▁compens ation . ▁ ▁Brit t any ▁retained ▁its ▁aut onomy , ▁or ▁rather ▁independence , ▁although ▁continu ously ▁giving ▁lip ▁service ▁to ▁French ▁so vere ig nt y . ▁ ▁After ▁the ▁Bre ton ▁War ▁of ▁Su cc ession , ▁Brit t any ▁still ▁had ▁links ▁with ▁the ▁English ▁through ▁the ▁Ear ld om ▁of ▁Richmond , ▁until ▁the ▁Wars ▁of ▁the ▁Ros es . ▁ ▁John ▁IV , ▁Duke ▁of ▁Brit t any ▁was ▁desert ed ▁by ▁his ▁nobles ▁in ▁ 1 3 7 3 ▁and ▁left ▁for ▁ex ile ▁in ▁England . ▁Louis ▁I , ▁Duke ▁of ▁An jou , ▁brother ▁of ▁Charles ▁V ▁of ▁France , ▁and ▁a ▁son - in - law ▁of ▁the ▁de posed ▁Pent hi è vre ▁Duch ess ▁Jo anna