▁by ▁his ▁father ▁when ▁he ▁was ▁five ▁years ▁old ; ▁his ▁half - un cle , ▁Juan ▁de ▁Arag ón , ▁Arch bishop ▁of ▁Zar ago za ▁and ▁il leg it imate ▁son ▁of ▁King ▁John ▁II ▁of ▁Arag on , ▁died . ▁Ferdinand ▁II ▁decided ▁that ▁Al onso ▁would ▁succeed ▁him , ▁but ▁Pope ▁Si xt us ▁IV ▁thought ▁that ▁he ▁was ▁too ▁young ▁and ▁appointed ▁Aus ías ▁de ▁P ug gio . ▁By ▁ 1 4 7 8 , ▁the ▁Pope ▁couldn ' t ▁with stand ▁the ▁pressure ▁any ▁more ▁and ▁appointed ▁Al onso ▁as ▁new ▁Arch bishop ▁on ▁ 1 4 ▁August . ▁However , ▁he ▁was ▁not ▁ord ained ▁as ▁a ▁priest ▁until ▁ 7 ▁November ▁ 1 5 0 1 , ▁a ▁day ▁before ▁being ▁ord ained ▁as ▁a ▁bishop . ▁ ▁On ▁ 2 3 ▁January ▁ 1 5 1 2 , ▁Al onso ▁was ▁appointed ▁Arch bishop ▁of ▁Val encia . ▁He ▁was ▁ent hr oned ▁as ▁such ▁on ▁ 4 ▁April ▁ 1 5 1 2 . ▁ ▁Political ▁career ▁ ▁His ▁father ▁made ▁him ▁Lieutenant ▁General ▁of ▁the ▁Kingdom ▁of ▁Nap les ▁in ▁ 1 5 0 7 , ▁to ▁replace ▁Gonz alo ▁Fernández ▁de ▁C ór dob a . ▁In ▁ 1 5 1 2 , ▁he ▁was ▁in ▁command ▁of ▁the ▁troops ▁that ▁conquer ed ▁T ud ela ▁in ▁the ▁Spanish ▁con quest ▁of ▁I ber ian ▁Navar re . ▁ ▁When ▁his ▁father ▁died ▁in ▁ 1 5 1 6 ,