_Baron of LEVING ____+
                                                    | (1065 - ....)       
                            _Leving of LEVINGSTOUN _|
                           | (1100 - 1150)          |
                           |                        |_____________________
                           |                                              
 _Thurston of LEVINGSTOUN _|
| (1120 - 1153)            |
|                          |                         _____________________
|                          |                        |                     
|                          |________________________|
|                                                   |
|                                                   |_____________________
|                                                                         
|
|--Alexander LIVINGSTON 
|  (1150 - ....)
|                                                    _____________________
|                                                   |                     
|                           ________________________|
|                          |                        |
|                          |                        |_____________________
|                          |                                              
|_Callenda of CALLENDAR ___|
  (1122 - 1150)            |
                           |                         _____________________
                           |                        |                     
                           |________________________|
                                                    |
                                                    |_____________________