McDermott or MacDermott is an Irish surname and the anglicised version of Mac Diarmada (also spelled Mac Diarmata), the surname of the ruling dynasty of Moylurg , a kingdom that existed in Connacht from the 10th to 16th centuries.
3-463: 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
6-476: 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 ; the current incumbent is Francis MacDermot, who succeeded by birthright to his father Rory MacDermot who died on 6 May 2021. Variations of the name include : and others. McDermott The last ruling king
9-462: 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
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