_Donncuan O'Toole ________________+
                                                                   |                                  
                                _Gilla Comgaill O'Toole ___________|
                               | (.... - 1127)                     |
                               |                                   |_Sadb ingen Mael Morda O'Domnail _+
                               |                                                                      
 _Mouirchertach O'Toole _______|
| (.... - 1164)                |
|                              |                                    __________________________________
|                              |                                   |                                  
|                              |___________________________________|
|                                                                  |
|                                                                  |__________________________________
|                                                                                                     
|
|--Mor ingen Muirchertaig O'Toole 
|  
|                                                                   _Amargen O'Morda _________________+
|                                                                  | (.... - 1097)                    
|                               _Loigsech O'Morda _________________|
|                              | (.... - 1149)                     |
|                              |                                   |_Gormflaith O'Néill ______________+
|                              |                                                                      
|_Cacht ingen Loigsig O'Morda _|
                               |
                               |                                    _Finn O'Caellaide ________________+
                               |                                   |                                  
                               |_Gormlaith ingen Finn O'Caellaide _|
                                                                   |
                                                                   |__________________________________