The Great Peninsular Kingdoms By AlphaElement Jul 17, 1212 Battle of las Navas de Tolosa 1230 DEFINITIVE UNION OF CASTILE AND LEON 1244 FERDINAND III OCCUPIES JAEN. TREATY OF ALMIZRA 1262 ALFONSO X CONQUERS NIEBLA 1273 FOUNDATION OF THE MESTA 1340 BATTLE OF SALADO 1344 ALFONSO XI OCCUPIES ALGECIRAS 1369 BEGINING OF THE TRASTÁMARA DYNASTY IN THE CROWN OF CASTILE Period: 1475 to 1479 CIVIL WAR IN CASTILE 1492 CONQUEST OF GRANADA