Ailbhe Mac Shamhráin (31 August 1954 – 29 June 2011)[1] was an Irish medieval historian and celticist.
Prior to that, he taught History and Irish at Belcamp College Secondary School.
[2] In recent years, Mac Shamhráin has led and managed the Monasticon Hibernicum Project (funded by the Irish Research Council for the Humanities and Social Sciences).
His database of Early Christian Ecclesiastical Settlement in Ireland from the 5th to the 12th centuries was published online in 2009.
He continued to write throughout, and completed his final article in hospital on the day of his death.