1451 -1504 Isabella I reigned as Queen of Castile from 1474 until her death. Her marriage to Ferdinand II of Aragon became the basis for the political unification of Spain under their grandson, Charles I. (apr 20, 1451 – nov 30, 1504)
Added to timeline:
Date:
apr 20, 1451
nov 30, 1504
~ 53 years