 Legend has it that while there he was assigned by King Budic II to subdue a belligerent winged dragon, which he was said to have tamed and then tied to a rock in the sea off Brittany.He is reported to have stayed in Dol for seven years and seven months so must have left in 556 or 557.Dol-de-Bretagne is reputed to be the origin of the royal House of Stewart who became the monarchs of Scotland and later England and Ireland; a plaque in Dol commemorates that origin.