_Rudolph VON SCHUDI _+
                                               | (1123 - 1200)       
                        _Heinrich VON TSCHUDI _|
                       | (1143 - 1225)         |
                       |                       |_____________________
                       |                                             
 _Johannes VON SCHUDI _|
| (1175 - 1250)        |
|                      |                        _____________________
|                      |                       |                     
|                      |_______________________|
|                                              |
|                                              |_____________________
|                                                                    
|
|--Rudolf VON TSCHUDI 
|  (1222 - 1302)
|                                               _____________________
|                                              |                     
|                       _______________________|
|                      |                       |
|                      |                       |_____________________
|                      |                                             
|_Mechtild VON VENNEN _|
  (1179 - ....)        |
                       |                        _____________________
                       |                       |                     
                       |_______________________|
                                               |
                                               |_____________________