Olcobhar mac Cummuscach

Olcobhar mac Cummuscach (died 820) was Abbot of Clonfert.

References

• Annals of Ulster at CELT: Corpus of Electronic Texts at University College Cork
• Annals of Tigernach at CELT: Corpus of Electronic Texts at University College Cork
• Revised edition of McCarthy's synchronisms at Trinity College Dublin.
• Byrne, Francis John (2001), Irish Kings and High-Kings, Dublin: Four Courts Press,
• Lysaght, Eamonn (1978), The Surnames of Ireland. , pp. 233–34.