<page_title> List of rulers of Brittany </page_title> <section_title> House of Dreux </section_title> <table> <cell> John III the Good (Yann III) 1312–1341 <col_header> Name </col_header> </cell> <cell> 8 March 1286 Château de Champtoceaux, Maine-et-Loire eldest son of Arthur II and Marie of Limoges <col_header> Birth </col_header> </cell> <cell> 30 April 1341 Caen aged 55 <col_header> Death </col_header> </cell> </table>
John III the Good (Yann III; 8 March 1286 – 30 April 1341) was Duke of Brittany from 1312 to his death.