▁he ▁was ▁co - c laim ant ▁until ▁their ▁ 1 0 1 9 / 2 0 ▁divor ce , ▁then ▁counter - c laim ant ▁San cho ▁III ▁of ▁Pam pl ona ▁( 1 0 1 8 – 1 0 3 5 ), ▁r uler ▁first ▁of ▁William ▁Is arn ' s ▁portion , ▁then ▁of ▁the ▁entire ▁county ▁by ▁con quest ▁and ▁submission , ▁he ▁married ▁M uni ad ona ▁of ▁Cast ile , ▁nie ce ▁and ▁event ual ▁he ir ess ▁of ▁Mayor ▁García ▁and ▁great - grand d augh ter ▁of ▁Raymond ▁II ▁Gonz alo ▁( 1 0 3 5 – 1 0 4 5 ), ▁son ▁of ▁San cho ▁III , ▁ruled ▁as ▁reg ulus ▁( pet ty ▁king ) ▁or ▁re x ▁( king ) ▁of ▁Rib ag or za ▁and ▁Sob rar be ▁Abs or bed ▁into ▁the ▁territ ories ▁of ▁his ▁brother ▁Ram iro ▁I ▁of ▁Arag on ▁on ▁Gonz alo ' s ▁death , ▁on ▁occasion ▁created ▁as ▁an ▁app an age . ▁San cho ▁Ram í rez , ▁il leg it imate ▁son ▁of ▁Ram iro ▁I ▁and ▁half - bro ther ▁of ▁king ▁San cho ▁Ram í rez . ▁Peter ▁I ▁of ▁Arag on ▁and ▁Navar re ▁appeared ▁as ▁King ▁of ▁Rib ag or za ▁and ▁Sob rar be ▁during ▁the ▁reign ▁of ▁his ▁father , ▁king ▁San cho ▁Ram í rez . ▁Peter ▁( 1 3 2 2 – 1 3 8 1 ), ▁a ▁younger ▁son ▁of ▁James ▁II ▁of