Giolla Íosa Mór Mac Fir Bhisigh
Gilla Íosa Mor mac Donnchadh MacFhirbhisigh (fl. 1390 – 1418) was a historian, scribe and poet of the learned Clan MacFhirbhisigh based at Lackan in Tír Fhíacrach, now part of County Sligo. He w...