6th century. The only listing for Sinell is in Montague, which leads me
to believe there must be a variant spelling of his name, perhaps on
another feast day. His omission in other lists would be odd because he
is considered one of the Twelve Apostles of Ireland, i.e., one of those
outstanding students of
Saint Finian of Clonard (f.d. December 12)
who
evangelized Ireland. Sinell established and governed a strict monastery
on Cleenish Island in Lake Erne, County Fermanagh, where
Saint Columbanus of Luxeuil (f.d. November 21)
was trained
(
Montague).