<page_title> List of Castilian monarchs </page_title> <section_title> House of Trastámara </section_title> <table> <cell> Isabella I <col_header> Monarch </col_header> </cell> <cell> 11 December 1474 <col_header> Began </col_header> </cell> <cell> 26 November 1504 <col_header> Ended </col_header> </cell> <cell> After ruling for a month on her own, Isabella was then joined by her husband, Ferdinand, who ruled Castile jure uxoris as Ferdinand V. <col_header> Notes </col_header> </cell> </table>
Isabella I reigned over Castile from 1474-26 November 1504.