Mac Diarmada (anglicised as McDermott or MacDermot), also spelled Mac Diarmata, is an Irish surname, and the surname of the ruling dynasty of Moylurg, a kingdom that existed in Connacht from the 10th to 16th centuries. The last ruling king was Tadhg mac Diarmata, who ruled until 1585.
The progenitor of the family was Dermot mac Tadhg Mor, 7th King of Moylurg, who reigned from 1124 to 1159. He was a vassal and kinsman of the Ó Conchubhair, Kings of Connacht; their common ancestor was Tadg mac Cathal, King of Connacht from 925 to 956. They were based at McDermott's Castle, Lough Key.
Later offshoot septs of the dynasty included the families of MacDermot Roe.
Moylurg ceased to exist as a kingdom in the late 16th century, though the senior line of the MacDermot's continued to live a sometime poverty-stricken and precarious existence despite land confiscations and the oppression of the Penal Laws. During this era they were popularly accorded the title Prince of Coolavin;[citation needed] the current incumbent is Francis MacDermot,[citation needed] who succeeded by birthright to his father Rory MacDermot who died on 6 May 2021.[1][citation needed]
^The Oxford Dictionary of Family Names in Britain and Ireland, ed. by Patrick Hanks, Richard Coates, and Peter McClure, 4 vols (Oxford: Oxford University Press, 2016), III, p. 1461 [s.v. Kermode]; ISBN978-0-19-967776-4.
This page lists people with the surnameMac Diarmada. If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.
