Calligrapher Dawn Burgoyne’s interpretation of King Rhodri Mawr based on a crude illustration from a 15th century Welsh language version of Geoffrey of Monmouth’s highly influential Historia Regum Britanniae Calligrapher Dawn Burgoyne’s interpretation of King Rhodri Mawr based on a crude illustration from a 15th century Welsh language version of Geoffrey of Monmouth’s highly influential Historia Regum BritanniaeHistoria Regum Britanniae