Isabella I of Castile

Isabella I (Spanish: Isabel I; 22 April 1451 – 26 November 1504), also called Isabella the Catholic (Spanish: la Católica), was Queen of Castile from 1474 until her death in 1504, as well as Queen consort of Aragon from 1479 until 1504 by virtue of her marriage to King Ferdinand II of Aragon. Reigning together over a dynastically unified Spain, Isabella and Ferdinand are known as the Catholic Monarchs.