Cormac ua Cillín
Cormac ua Cillín (died 966) was abbot of Tuamgraney.
Cormac was the ancestor of the Ó Cillín family, who were coarbs of Tuamgraney. The Chronicon Scotorum, sub anno 966, states:
Ua Cillín founded St. Cronan's Church, Tuamgraney.
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