Catholic Encyclopedia - St. Silvia, also known as St. Sylvia. The mother of St. Gregory the Great. Died in about 592. www.newadvent.org/cathen/13794a.htm
Catholic Online - Has a little information on St. Gordian as well as St. Sylvia. saints.catholic.org/saints/sylvia.html
For All the Saints - More a meditation on motherhood than a life of Sylvia. users.erols.com/saintpat/ss/1103.htm#sylv
