Beachy Head (牝 1865 鹿毛 Knight of St. Patrick)
 |-- Breechloader (牡 1872 黒鹿毛 Macaroni)
 |-- Light House (牝 1875 黒鹿毛 Sterling)
 |   `-- Le Cordouan (牡 1885 栗毛 Lord Clive)
 `-- Electric Light (牝 1876 黒鹿毛 Sterling)
     |-- Lovely (牝 1880 青毛 Alvarez)
     |        1着 - '83コロネーションS
     |-- Petrel (牝 1887 鹿毛 Peter)
     |   `-- Arc Light (牝 1893 黒鹿毛 Prism)
     |-- Axiom (牝 1888 鹿毛 Peter)
     |   `-- Doctrine (牝 1899 鹿毛 Ayrshire)
     |       |    1着 - '02コロネーションS
     |-- Bill of Portland (牡 1890 黒鹿毛 St. Simon)
     `-- No Trumps (牝 1896 鹿毛 Orvieto)
         `-- Light (牝 1907 鹿毛 Eager)