Catholic Encyclopedia - St. Suitbert, also known as Swithbert or Suidbert. Born in England, studied in Ireland, accompanied St. Willibrord on his missionary journeys. Died in 713. www.newadvent.org/cathen/14328b.htm
Patron Saints Index - Illustrated profile of the Apostle of the Frisians. www.catholic-forum.com/saints/saints18.htm