father predecessor successor succession house mother death_date death_place religion birth_date spouse issue image article_title reign
john i , duke of brittany john i arthur ii duke of brittany house of dreux blanche of navarre 18 november 1305 lyon roman catholicism 3/4 january 1239 beatrice of england arthur earl of richmond marie , countess of saint pol peter ii , viscount of leon blanche , countess of artois eleanor , of brittany , abbess of fontevrault duke of brittany john , 1st jean ii de bretagne -lrb- détail -rrb- . png john ii , duke of brittany
 8 october 1286 -- 18 november 1305
john ii , duke of brittany

john ii -lrb- , ; 1239 -- 18 november 1305 -rrb- reigned as duke of brittany from 1268 until his death , and was also earl of richmond in the peerage of england .
he took part in two crusades prior to his accession to the ducal throne .
as a duke , john was involved in the conflicts between the kings of france and england .
he was crushed to death in an accident during the celebrations of a papal coronation .
