Hoireabhárd
HOIREABHÁRD—VIII—Hereward, Herward; 'son of Hereweard' (an Anglo-Saxon personal name); an old surname in Ireland. 'Adam Hereward' occurs in the Dublin Roll of Names, A.D. 1216, and somewhat later in the same century Simon Hereward was mayor of Limerick.
Alphabetical Index to Irish Surnames