Catholic Encyclopedia - St. Ruadhan, Irish founder of the monastery of Lorrha, one of the "twelve apostles of Erin", d. 584. www.newadvent.org/cathen/13214a.htm
For All the Saints - St. Ruadhan is also known as St. Rodan or Ruadan. users.erols.com/saintpat/ss/0415.htm#roda
