Brittany (牝 1940 栗毛 Stimulus)
 |-- Copper Hill (牝 1946 鹿毛 Case Ace)
 |   |-- Neshanic (牝 1954 鹿毛 Princequillo)
 |   |   `-- Fame and Honor (牝 1973 鹿毛 Diplomat Way)
 |   `-- Copper Princess (牝 1957 鹿毛 Princequillo)
 |       `-- Famed Princess (牝 1973 鹿毛 Nashua)
 `-- Castle Tower (牝 1947 黒鹿毛 Case Ace)
     `-- Chimney Swallow (牝 1958 鹿毛 War Admiral)
         |-- Favorable Turn (牡 1964 黒鹿毛 Turn-to)
         |-- Barn Swallow (牝 1967 栗毛 Mongo)
         `-- Swallow the Sun (牡 1970 鹿毛 Northern Dancer)