De Tráibears
de TRÁIBEARS—XI—de Travers, de Tryveres, de Tryvers, Trevers, Trivers, Travers, Travors, Trevors, etc.; Norman 'de Tryvers,' i.e., of Treviers in Normandy; a rather old surname in Dublin and many parts of the south of Ireland, especially Kildare, Carlow, Tipperary and Cork.
Alphabetical Index to Irish Surnames