<page_title> List of rulers of Brittany </page_title> <section_title> House of Thouars </section_title> <table> <cell> Peter I Mauclerc (Pêr Iañ) 1213–1221 with Alix <col_header> Name </col_header> </cell> <cell> 6 July 1250 sea off Damietta aged 59–60 <col_header> Death </col_header> </cell> </table>
Peter I Mauclerc died in 1250, was Duke of Brittany from 1213 to 1221.