St. Sechnall was born in 375, and around the year 439 was sent from Gaul to assist his uncle, Saint Patrick, in Ireland, together with Auxilius and Iserninus in thier missionary work there. He became the first bishop of Dunslaughlin in Meath, and then auxiliary bishop of Armagh.
He wrote several hymns, notably the alphabetical hymn Audites, omnes amantes Deum (the oldest known Latin hymn written in Ireland) in honor of Patrick and the earliest Latin hymn in Ireland, and Sancti, venite, Christi corpus sumite.
He died in 447, and his feast day is November 27.
Printed with permission from Catholic-Defense.