Origin : Irish,
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Additional information Uilleag:
Either an Irish form of the Old Norse name HUGLEIKR, or else a diminutive of UILLIAM.
Wiki information Uilleag:
Sir Ulick de Burgh or Burke 1st Clanricarde, died 1343.
Theobald mac Uilleag Bourke, 14th Mac William Iochtar, died 1537.