Io (牝 1836 栗毛 Taurus)
 `-- Sunflower (牝 1847 鹿毛 Bay Middleton)
     |-- Sunbeam (牝 1855 鹿毛 Chanticleer)
     |   |    1着 - '58コロネーションS、'58英セントレジャー
     |   `-- Sunshine (牝 1867 鹿毛 Thormanby)
     |       |    1着 - '69シャンペンS、'69ジュライS、'70コロネーションS
     |-- Chieftain's Daughter (牝 1859 栗毛 Lord of the Isles)
     |   |-- Star of the East (牝 1865 Star of the West)
     |   |-- Bonnie Lassie (牝 1875 鹿毛 Brother to Strafford)
     |   `-- Victor Chief (牡 1876 栗毛 Albert Victor)
     |-- Mayflower (牝 1864 鹿毛 Thormanby)
     |   `-- Flora Macdonald (牝 1871 鹿毛 Scottish Chief)
     `-- Crocus (牝 1866 栗毛 Thormanby)
         |-- Coltness (牡 1873 鹿毛 King Tom)
         |-- Wood Anemone (牝 1874 栗毛 King of the Forest)
         |-- Glengarry (牡 1875 栗毛 Scottish Chief)
         |        1着 - '78プリンスオブウェールズS
         |-- Lelia (牝 1876 栗毛 King Tom)
         |        1着 - '79コロネーションS
         |-- Celandine (牝 1878 鹿毛 Macaroni)
         `-- Spring Daisy (牝 1879 鹿毛 Springfield)