Gilla in Choimded Ó Cerbailláin (died 1279), also known in Latin as Germanus,[1] was a medieval Irish bishop.
[2] Ó Cerbailláin was elected Bishop of Cinél nEógain in 1230.
In 1254 he transferred the See from Ráith Lúraig (Maghera) to Derry.
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