Olcobhar mac Cummuscach From Wikipedia, the free encyclopedia Irish abbot (died 820) Olcobhar mac CummuscachDied820 Olcobhar mac Cummuscach (died 820) was Abbot of Clonfert. Preceded byTibraide mac Cethernach Abbot of Clonfert 817–820 Succeeded byRuthmael 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, ISBN 978-1-85182-196-9 Lysaght, Eamonn (1978), The Surnames of Ireland. ISBN 0-7165-2278-0, pp. 233–34. This article about a member of the Christian clergy in Ireland is a stub. You can help Wikipedia by adding missing information.vte Related Articles~TimelinesTop QsFact Checks
