▁of ▁its ▁counts ▁was ▁at ▁Ben ab ar re . ▁Other ▁notable ▁towns ▁include ▁Ben as que , ▁Gra us ▁and ▁Pont ▁de ▁Su ert . ▁Today ▁the ▁western ▁portion ▁of ▁the ▁county ▁roughly ▁corresponds ▁to ▁the ▁Arag on ese ▁com arca ▁of ▁Rib ag or za , ▁with ▁its ▁administrative ▁centre ▁in ▁Gra us ; ▁the ▁eastern ▁portion ▁roughly ▁corresponds ▁to ▁the ▁Catal an ▁com arca ▁of ▁Al ta ▁Rib ag or ça . ▁ ▁The ▁first ▁history ▁of ▁the ▁region ▁was ▁written ▁in ▁the ▁early ▁fif teenth ▁century ▁and ▁preserved ▁in ▁a ▁fragment um ▁historic um ▁ex ▁cart ular io ▁A la on is ▁( histor ical ▁fragment ▁from ▁a ▁cart ul ary ▁of ▁A la on ), ▁though ▁a ▁gene al ogy ▁of ▁the ▁r uling ▁dynast y ▁of ▁counts ▁perhaps ▁d ating ▁from ▁the ▁early ▁ 1 1 th ▁century ▁appears ▁in ▁the ▁C ód ice ▁de ▁Rod a . ▁ ▁List ▁of ▁counts ▁Raymond ▁I ▁of ▁P all ars ▁and ▁Rib ag or za ▁( 8 7 2 – 9 2 0 ), ▁son ▁of ▁Lu pe , ▁Count ▁of ▁Big or re . ▁After ▁his ▁death ▁his ▁lands ▁were ▁divided ▁among ▁his ▁four ▁sons , ▁two ▁r uling ▁joint ly ▁in ▁P all ars , ▁two ▁in ▁Rib ag or za ▁M iro ▁( 9 2 0 – ? ), ▁son ▁of ▁Raymond ▁I , ▁joint ly ▁with ▁brother ▁Bernard ▁I ▁Bernard ▁I ▁Hum fred ▁( I ) ▁( 9 2 0 ▁– ▁ 9 5 0