ine ▁in ▁the ▁n ortheast ▁and ▁Mor b ih an ▁in ▁the ▁south ▁on ▁the ▁Bay ▁of ▁B isc ay . ▁Since ▁re organisation ▁in ▁ 1 9 5 6 , ▁the ▁modern ▁administrative ▁region ▁of ▁Brit t any ▁compr ises ▁only ▁four ▁of ▁the ▁five ▁Bre ton ▁depart ments , ▁or ▁ 8 0 % ▁of ▁historical ▁Brit t any . ▁The ▁remaining ▁area ▁of ▁old ▁Brit t any , ▁the ▁Lo ire - At lant ique ▁department ▁around ▁N antes , ▁now ▁forms ▁part ▁of ▁the ▁Pays ▁de ▁la ▁Lo ire ▁region . ▁ ▁At ▁the ▁ 2 0 1 0 ▁census , ▁the ▁population ▁of ▁historic ▁Brit t any ▁was ▁estimated ▁to ▁be ▁ 4 , 4 7 5 , 2 9 5 . ▁Of ▁these , ▁ 7 1 % ▁lived ▁in ▁the ▁region ▁of ▁Brit t any , ▁while ▁ 2 9 % ▁lived ▁in ▁the ▁Lo ire - At lant ique ▁department . ▁In ▁ 2 0 1 2 , ▁the ▁largest ▁metropol itan ▁areas ▁were ▁N antes ▁( 8 9 7 , 7 1 3 ▁inhabitants ), ▁R ennes ▁( 6 9 0 , 4 6 7 ▁inhabitants ), ▁and ▁Br est ▁( 3 1 4 , 8 4 4 ▁inhabitants ). ▁Brit t any ▁is ▁the ▁traditional ▁hom eland ▁of ▁the ▁Bre ton ▁people ▁and ▁is ▁recogn ised ▁by ▁the ▁C elt ic ▁League ▁as ▁one ▁of ▁the ▁six ▁C elt ic ▁nations , ▁retain ing ▁a ▁distinct ▁cultural ▁identity ▁that ▁reflect s ▁its ▁history