family originated in Ireland. The Irish version of this name is Ó
Briain which derives from the first name Brian. The literal translation
for this name is difficult as it appears to have two meanings, 'raven'
and 'lofty' or 'eminent'. The O'Brien families are also descendants of
Brian Boru who was High King of Ireland in 1002 and who also won the
Battle of Clontarf in 1014. Today this surname is popular throughout all
of Ireland with particular prominence in the counties of Waterford,
Tipperary, Limerick and Clare. The O' prefix on a name means grandson
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