Ríthe Mhagh Loirg
Géag Síol Muireadaigh ba ea Ríthe Mhagh Loirg.  Deartháir Chonchúir mhic Thaidhg, rí Chonnacht 967–973, ba ea a sinsear, Maolruanaidh Mór mac Taidhg.  Roimhe sin, bhíodh Clann Mhic Riabhaigh i gceannas sa cheantar.

Is dóigh go raibh beart éigin déanta ag Maolruanaidh, go mbeadh sé ina rí Magh Loirg, in ionad na clainne Mhic Riabhaigh a bhí ann ó dhúchas, mar chúiteamh ar aon éileamh ar ríogacht an chúige.  Clann Mhaolruanaí, níos deireanaí Mhic Dhiarmada, ba ea a mhuintir.   Glaodh Mhic Dhiarmada Rua ar géag níos deireanaí den chlann.

Seo a leanas liosta de ríthe Mhagh Loirg, agus ansin tiarnaí agus cinn na fine go dtí an lá atá inniu ann.

Ríthe Mhagh Loirg 
 Maolruanaidh Mór mac Taidhg, beo 956, bunaitheoir Mhagh Loirg agus sinsear Chlann Mhaolruanaí.
 Muircheartach mac Maolruanaí Mhóir
 Tadhg mac Muircheartaigh
 Maolruanaidh mac Taidhg, beo 1080.
 Tadhg Mór mac Maolruanaí, 1120–1124.
 Maolseachlann mac Taidhg Mhóir, 1124.
 Diarmaid mac Taidhg Mhóir, 1124–1159, sinsear Mhic Dhiarmada.
 Muirgheas mac Taidhg Mhóir, 1159–1187.
 Conchúr mac Diarmada, 1187–1196.
 Tomaltach na Carraige Mac Diarmada, 1196–1207.
 Cathal Carrach Mac Diarmada, 1207–1215.
 Diarmaid Mac Diarmada, 1215–1218. 
 Cormac Mac Diarmada (I), 1218–1244
 Muircheartach Mac Diarmada, 1245–1265
 Tadhg Mac Diarmada (I), 1256–1281.
 Diarmaid Mideach Mac Diarmada, 1281–1287
 Cathal Mac Diarmada, 1288–1294
 Maolruanaidh Mac Diarmada (I), 1294–1331. 
 Tomaltach gCear Mac Diarmada, 1331–1336.
 Conchúr Mac Diarmada, 1336–1343
 Fearghal Mac Diarmada, 1343–1368.
 Aodh mayc Diarmada (I), 1368–1393.
 Maolruanaidh Mac Diarmada (II), 1393–1398.
 Conchúr Óg Mac Diarmada (II), 1398–1404.
 Ruairí Caoch Mac Diarmada (I), 1404–1421.
 Tomaltach an Einigh Mac Diarmada, 1421–1458.
 Aodh Mac Diarmada (II), 1458–1465.
 Conchúr Óg Mac Diarmada (III), 1456–1478.
 Ruairí Óg Mac Diarmada (II), 1478–1486.
 Conchúr Mac Diarmada (IV), 1486–1497.
 Tadhg Mac Diarmada (II), 1497–1499.
 Cormac mtac Diarmada (II), 1499–1528.
 Diarmaid an Einigh Mac Diarmada, 1528–1533.
 Eoghan Mac Diarmada, 1533–1534.
 Aodh an Aba Mac Diarmada (III), 1534–1549.
 Ruairí Mac Diarmada (III), 1549–1568
A school invitation was given by Mac Diarmada, i.e. Ruairí, at Christmas of this year; and it is not possible to count or over-reckon all that he gave to the poets, and professors, and learned men of Erinn, and to all men besides.
 Toirdhealbhach Mac Diarmada, 1568–1576.
 Tadhg Mac Diarmada (III), 1576–1585, rí de facto deireanach Mhagh Loirg.

 Mac Diarmada na Carraige 
 Brian na Carraige Mac Diarmada, 1585–1595, an chéad duine ar a tugadh an teideal "na Carraige"
 Conchúr Óg Mac Diarmada, 1595–1603.
 Brian Óg Mac Diarmada, 1603–1636.

 Ceann na Fine 
 Toirrdhealbhach Mac Diarmada, 1636 – c.1652, an chéad ar a tugadh an teideal Ceann na Fine.
 Cathal Rua Mac Diarmada, c.1652 – c.1694.
 Aodh Mac Diarmada, c.1694 – 1707.

 The Prince of Coolavin 
 Charles MacDermott, 1707–1758, ag chéad ar a tugadh an teideal to be styled Prince of Coolavin.
 Myles MacDermot, bás 1758–1792.
 Hugh MacDermott, M.D., 1792–1824.
 Charles Joseph MacDermot, J.P., 1824–1873.
 Hugh Hyacinth O'Rorke MacDermot, 1873–1904.
 Charles Edward MacDermot, 1904–1947.
 Charles John MacDermot, 1947–1979.
 Dermot MacDermot, 1979–1989.
 Niall Anthony MacDermot, 1989–2003.
 Rory MacDermot, 2004– Mac Diarmada, Prince of Coolavin'', Ceann na Fine.

Foinsí 
 Dermot Mac Dermot, "Mac Dermot of Moylurg: The Story of a Connacht Family", 1996.
 The MacDermot Clan Association

Féach freisin 
 Irish Royal Families

Tagairtí 

Uí Bhriúin
 
Mhic Dhiarmada