_____________________
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                       ______________________|
                      |                      |
                      |                      |_____________________
                      |                                            
 _John CHAMBERLAIN ___|
| (1293 - 1391)       |
|                     |                       _____________________
|                     |                      |                     
|                     |______________________|
|                                            |
|                                            |_____________________
|                                                                  
|
|--Richard CHAMBERLAIN 
|  (1324 - 1391)
|                                             _John II of MORTEYN _
|                                            | (1260 - 1296)       
|                      _John III of MORTEYN _|
|                     | (1274 - 1347)        |
|                     |                      |_Joan of GOBION _____+
|                     |                        (1248 - 1312)       
|_Jane of MORTEYN ____|
  (1303 - 1324)       |
                      |                       _____________________
                      |                      |                     
                      |_Joan EKNEY __________|
                        (1277 - ....)        |
                                             |_____________________