Foillan: Short biographical essay, by Karen Rae Keck.
Foillan of Fosses: Also known as Faillan. Short biography.
St. Foillan: Blood brother of SS. Fursey and Ultan. Irish-born abbot of Cnoberesburg until it was captured by the Mercians, whereupon Foillan fled to Nivelles. He was murdered in 652. Also known as Faelan, Faolan, Foelan, or Foalan.