Dál gCais

The Dál gCais (also Dal Cais; ) were a dynastic group of related s located in north, and who rose to political prominence in the early medieval era in. They claimed descent from Cas mac Conall Echlúath (hence the term "Dál", meaning "portion" or "share" of Cas), though in later times for reasons of political expediency they claimed descent from the ancestor of the, Oilliol Olum.

In early historic Ireland they were an obscure group, one of many of the subject peoples of the Éoganacht. In the seventh and eighth centuries, when the overkingdom of fell into decline, they moved north and annexed Tuadh Mumhan. Previously part of, it became part of Munster.

Thomond was to remain the heartland of the Dal gCais and its septs; it is most especially associated with the family of (Ua Briain, Ó Briain), who reigned as its kings from the 930s to 1543, and from  to the present day as. The current incumbent (18th Baron Inchiquin) is Conor O'Brien; a thirty-second generation descendant of (, -. He is also known simply as The O'Brien, and is Chief of the Name, Prince of Thomond.

List of Dál gCais septs

 * Ui Eachtighearna
 * Uí Chaisséne
 * Uí Blait
 * Uí Thairdelbaig
 * Uí Loingsig
 * Uí Uainidi
 * Uí Óengusso
 * Uí Róngaile
 * Uí Chellaig
 * Uí Láega
 * Uí Rodáin
 * Uí Chiunáin
 * Uí Fallamain
 * Uí Chormacáin
 * Síl Nárgalaíg
 * Muinter Bruig
 * Ua hOgain

Septs of the Uí Thairdelbaig Dál gCais

 * Áes Cluana
 * Uí Aingile
 * Uí Scandlán
 * Uí Aichir
 * Uí Thaidc
 * Uí Magair
 * Uí Énna
 * Uí Echach
 * Uí Chuinn
 * Uí ánrotháin
 * Uí Cholmáin
 * Uí Sída
 * Meic Cormaic
 * Meic Cétfada
 * Ua Briain
 * Ua hOgain
 * Ua Maol Dhómhnaigh

Dál gCais genealogy
''Sept names in brackets, under the name of their ancestral namesake. Numerals indicates number of generations between ancestor and descendant.''

Conall Echlúath |  |   Cas |  |_____________________   |                  |   |                  |   Caisséne           Blat (Uí Chaisséne)    (Uí Blait) |                 |   |                  |_____________________   Cáirthenn          |                   | |                 |                   |   6                  Brénainn Bán        Cáirthenn Finn |                 |                   |    Nárgalach         (Muinter Bruig)      |____________ (Síl Nárgalaíg)   (Ua Maol Dhómhnaigh) |          | |                                     |          |   |_________________                     Óengus     Eochu Ballderg |              |                  (Uí Óengusso)  | |              |                      |          |__________________   Corerán         Marcín                 Rónan      |          | (Uí Chellaig)  (Uí Sída)               |          |          | (Uí Cholmáin)  (Uí Rodáin)             |          Conall     Conall Cáem (Uí Chiunáin) _________|          |          | (Uí Láega)    |        |          |          | |       |          Fíán       Áed Dímma Máel Cáith     |          | |   (Uí Fallamain)   | |                    Aithirne Róngaile                 | (Uí Róngaile)              | |                    Cathal ? Dubh dá Leithe             | (Uí Chormacáin)             | (Uí Loingsig)         Tairdelbaig (Uí Uainidi)        (Uí Thairdelbaig) |  _____________________________________________________________|   |         |                          |                 |         |         |                          |                 |         Flannán   Eochu                      Ailgel       Mathgamain Sanctus (Uí Echach)              (Uí Aingile)         | |                         |                 |   __________|__________________        Eochu             Anulaun |            |          |           |                       |   |             |          |           |______________         |   Conall    Animchad   Aurthuile       |             |       Corc (áes Cluana)  |          |           |             |          | |            6          3           Fócarta       Scandlán   | 4            |          |          Uí Magair)  (Uí Scandlán) Lachtna   |     (Meic Cétfada)  (Uí Chuinn) (Uí Árotháin)     |         |   Énna   (Meic Cormaic)                           (Uí Aichir)   |  (Uí Énna)                                         (Uí Thaidc)  Lorcán                                                                  |   _______________________________________________________________|   |                                                  |                    |                                                  |                    Cennétig, Rí Thuath Mumain, d. 951.             Coscrach               |                                                  |                 |                           _______________________|_______________________   |                           |                      |                      |   |                           |                      |                      | |                          Maine               Aingid                  Aitheir |                          |                      |                      |   |                           |                      |                      |    |                 Cathal, abbot Killaloe,  Coscrach, abbot Killaloe,     Ogan |                    died 1013               died 1040               (Ua hOgain) |  |____________________________________________________________   |                          |                                |   |                          |                                |   Brian, Rí Éire, d. 1014. Marcán, abbot of Terryglass,    Donncuan (Ua Briain)              Inis Cealtra & Killaloe; d. 1010    | |__________________                  ______________________|_____________   |              |                      |         |           |         |   |              |                      |         |           |         |   Tadc, d. 1023  Donnchad, d. 1064. Céilchair   Londgargán  Cennétig  Connaig |                              abb.Terryglass  |           |         | |                                  d.1008      |           |         | Toirdhealbhach Ua Briain, High King,         Annud         Find      Dúnadach died 1086                                  issue     issue  issue