Origin of the Name Slevin
family history was found in the allfamilycrests.com archives. Variants of Slevin include Slavin, Slamon, McSliney, Sliney and Sleyne. This name in Irish is O'Sleibhin and the latter variants are the anglicized forms of this. This sept came from Ulster.
A sept or clan is a collective term describing a group of persons whose immediate ancestors bore a common surname and inhabited the same territory. Irish septs and clans that are related often belong to even larger groups, sometimes called tribes.
Derived from the Gaelic word 'sliabh' meaning 'mountain', they where a branch of the Cenel Eoghain in Ulster and were famous as poets. Giolla Comhghaill O'Sleibhin was chief Bard of Ulster and had long associations with King Malachy in the Northern resistance to Brian Boru. By the 16th century we find them recorded in the Ormond Deeds and in the Survey of Fermanagh they are cited as coarbs of Kiltierney. By the next century they were well established in the midlands and were among the principal Irish names in the Barony of Farbill, County Westmeath. It is in modern times that the name is mostly found in that district.
The Slevin coat of arms came into existence centuries ago. The process of creating coats of arms (also often called family crests) began in the eleventh century although a form of Proto-Heraldry may have existed in some countries prior to this. The new art of Heraldry made it possible for families and even individual family members to have their very own coat of arms, including all Slevin descendants.