Mayo:
King: O’Conor
Prince: O’Dowd
Baron: Browne, O’Hara, Taaffe

Sligo:
Princes: Mac Dermott., O’Donnell, O’Dowd
Lords: Mac Donogh, O’Conor, O’Flannelly, O’Gara, O’Hara, O’Mulchlohy
Chieftains: O’Crean, O’Hart, O’Kernaghan
No Title Designated: Mac Conway, Mac Firbis, Mac Geraghty, O’Brogan, O’Coleman, O’Conaghty, O’Delvin, O’Durkan, O’Feeney, O’Finegan, O’Gavagan, O’Howley, O’Keevan, O’Meehan, O’Mongan, O’Moran, O’Morrissey, O’Morrison, O’Moynagh, O’Mullany, O’Mulvany, O’Spillane.

Source:
Irish and Scotch-Irish Ancestral Research
A Guide to the Genealogical Records, Methods and Sources in Ireland
Volume I Repositories and Records
By Margaret Dickson Falley, BS
Page 456 and 458