Diarmaid of Cill Baghain MacCarthy King of Desmond

✓ Diarmaid Mac Carthaigh, called 'Cille Baghain / Cille Badhuna', King of Desmond; son of Cormac (k.1138): MCB c.1170 'Diarmaid son of Cormac son of Muireadheach Mac Carthaigh over the other province [of Munster]'; MCB 1193.2 'Domhnall Mór son of Diarmaid Cille Baghdhun son of Cormac Muighe Thamhnach son of Muireadhach Mac Carthaigh'. Submitted to Henry II at Waterford 1171 (Giraldus; Song of Dermot). The standard accounts give his death as 1185, which is not located in the annal entries read here - no date entered. Father of Domhnall Mór (d.1206) and of Cormac Liathánach, whose line (Domhnall Gall, the 'other' Domhnall Ruadh k.1245) was the rival branch. Wife not recorded. Sources read 26 Oct 2026: Annals of Inisfallen (Mac Airt ed.), CELT T100004; Mac Carthaigh's Book (Miscellaneous Irish Annals, Ó hInnse ed. 1947), CELT T100013; Annals of the Four Masters (O'Donovan ed.), CELT T100005B. [DIRECT ANCESTOR OF THE COMPILER: flag added 26 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.] ||26 Oct 2026|| Death added from DIB (E. O'Byrne, 'Mac Carthaig, Diarmait Mór', 2009): murdered by Geoffrey de Cogan at a parley, 6 Nov 1185; submitted to Henry II at Waterford Oct 1171; deposed and imprisoned by his son Cormac Liathánach 1176, restored within the year. DIB: 'the product of an unusual union between Cormac Mac Carthaig (d. 1138) and a lady of the declining Leinster Uí Lorcáin dynasty of Uí Muiredaig; he seems to have been the second of Cormac's three recorded sons.' Mother added (name unknown).