David O'Hiraghty was a 14th-century Irish bishop. He was appointed Dean of Armagh in 1330 and served until 1334;St Patrick's Cathedral, Armagh and was Archbishop of Armagh"Annales Hiberniae" Grace, J. p131: Dublin; Irish Archaeological Society; 1842 from his Consecration at Avignon until his death on 16 May 1346.
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