[Bishop of Dunseachlin, or Dunsaghlin, in Meath, called by the Irish Seachnal] He was nephew and disciple to Saint Patrick, and died in 447. See Colgan, Ware, and the note on Saint Ultan, 4th of September.
- Father Alban Butler. “Saint Secundin, Bishop in Ireland”. , 1866. CatholicSaints.Info. 26 November 2013. Web. 9 December 2016. <>