There are clear signs that the Mac Gilla Mo-Cholmoc family had strong links with Dublin before the Norman invasion. A gate in the pre-Norman city wall was, in the later middle ages, known as Mac Gilla Mo-Colmoc Gate. The family was the only native one commemorated in medieval Dublin in this way. Nearby, what is now St. Michael’s Lane, which descends the hill from High Street to Cook Street, by the side of the Synod Hall of Christ Church, was designated Mac Gilla Mo –Cholmoc Street up to the fifteenth century.
Smal, Chris (1993) Ancient Rathdown and St. Crispin’s Cell, A uniquely historic landscape. Friends of Historic Rathdown, Greystones.