, ▁ 1 9 0 4 ▁in ▁Santa ▁Fe ) ▁was ▁an ▁Argent ine ▁politician ▁and ▁lawyer , ▁and ▁governor ▁of ▁Santa ▁Fe ▁between ▁ 1 8 6 5 ▁and ▁ 1 8 6 8 . ▁ ▁Youth ▁in ▁the ▁military ▁O ro ño ▁was ▁born ▁to ▁Un itar ian ▁Cor onel ▁Santiago ▁O ro ño ▁and ▁Ju ana ▁Á v ila ▁Ba ig or ria . ▁At ▁age ▁ 1 6 ▁he ▁joined ▁his ▁father ▁and ▁participated ▁of ▁the ▁military ▁campaign s ▁directed ▁by ▁Juan ▁Lav alle ▁and ▁José ▁María ▁Paz . ▁In ▁ 1 8 3 9 ▁he ▁married ▁Jo aqu ina ▁C ull en , ▁daughter ▁of ▁Santa ▁Fe ▁governor ▁Dom ingo ▁C ull en . ▁ ▁In ▁ 1 8 5 2 ▁he ▁participated ▁of ▁the ▁Battle ▁of ▁Cas eros , ▁fighting ▁together ▁with ▁the ▁forces ▁of ▁Entre ▁R íos ▁under ▁the ▁command ▁of ▁Ric ardo ▁López ▁Jord án , ▁one ▁of ▁the ▁divisions ▁of ▁the ▁Grand ▁Army , ▁against ▁the ▁forces ▁of ▁Buenos ▁Aires ▁led ▁by ▁Juan ▁Manuel ▁de ▁Ros as . ▁ ▁Political ▁career ▁ ▁In ▁ 1 8 5 4 ▁O ro ño ▁sent ▁a ▁letter ▁to ▁president ▁of ▁the ▁Argent ine ▁Confeder ation ▁Just o ▁José ▁de ▁Ur qu iza ▁with ▁a ▁proposal ▁for ▁the ▁institution al ▁organization ▁of ▁Ros ario , ▁which ▁was ▁approved . ▁On ▁August ▁ 1 7 ▁of ▁that ▁year ▁he ▁was ▁named ▁Custom s ▁Administr ator , ▁an ▁important ▁position ▁during ▁those ▁times . ▁ ▁After ▁the ▁prom ul g