Physicians enjoyed a high legal status in Gaelic society, and were supported by the hereditary tenure of lands that were granted to them by the landowning aristocracy in exchange for medical services ...
While the precise nature and effectiveness of the treatment they gave their patients is unclear, the quality of the intellectual training Irish doctors received in their professional medicals schools was high.
They were well equipped to offer their aristocratic employers a medical service that was informed by the best of contemporary scientific learning.
This list is not exhaustive: Connacht: Donegal: Leinster: Munster: Ulster (Ulidia): Aoibheann Nic Dhonnchadha writes: The extensive corpus of medical writing that survives in Irish comprises more than a hundred manuscripts written during the period c. 1400 to c. 1700.
These documents, most of which are housed in Irish libraries, are the most important written record extant for the institutional organisation and medical practise of physicians in late medieval and early modern Ireland and Scotland.