Giorgio Calvi, = Bss Anna Guidobono
                      C di Bergolo  |  Cavalchini Roero
                      [8]           |    San Severino
                                    |    [8]
                                    |
                  __________________|__________________
                 |               (218.2)               |               (254)
                 |    (1914)        |                  |      (1923)     |
             Mathilde    =        Aage,          Giorgio Carlo,  =  Pss Iolanda
              Emilia     |   C of Rosenborg       C di Bergolo   |   of Italy
            (1885-1949)  |        †1940           (1887-1977)    |     †1977
            [8]          | (S-H-S-Glücksburg)     [8]            |    (Savoy)
                         v                                       |
                                                                 |
               __________________________________________________|_______________________________________________
              |                     |            |                             |                                 |
              |   (1949)            |            |   (1947)                    |   (1951)                        |      (1958)
            Maria    ≠ Robert    Giorgio     Vittoria   =   Guglielmo      Guia Anna  =   nob Carlo       Pier Francesco,  =  Marisa
           Ludovica  | Gasche    Umberto      (1927-)   | Guarienti dei     (1930-)   | dei C Guarenti     C di Bergolo    |  Allasio  
           (1924-)   | *1918     (*1925†)     [8]       | C di Brenzone     [8]       |   di Canossa          (1933-)      |   *1936
           [8]       v [8]       [8]                    |     *1919                   |      *1923            [8]          |   [8]
                                                        v     [8]                     v      [8]                           |
                                                                                                                           |
                                                                                                                      _____|_____
                                                                                                                     |           |
                                                                                                                     |           |
                                                                                                                   Carlo        Anda
                                                                                                                  Giorgio    Federica   
                                                                                                                  (1959-)     (1962-)
                                                                                                                  [8]         [8]