The surname Hickey is one of the most ancient Irish surnames (O hIcidhe or O'Caigh "descendent of the healer"), with the clan holding the position of court physicians to the powerful O'Brien royal family of Thomond. This ancient Irish family claims to be descended from Heber, a son of Milesius, King of the Gauls who colonized Ireland many centuries before the Christian era.
Areas of Origin for HICKEY
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