Lady Margaret ( 牝 1886 栗毛 The Ill-Used )
 |-- Margrave ( 牡 1893 栗毛 St. Blaise )
 |        1着 - '96プリークネスS
 |-- Lady Madge ( 牝 1896 栗毛 Rayon d'Or )
 |   |-- Madcap ( 牝 1908 黒鹿毛 Rock Sand )
 |   |   |-- Mill Maid ( 牝 1914 栗毛 Fair Play )
 |   |   |-- Mad Hatter ( 牡 1916 黒鹿毛 Fair Play )
 |   |   `-- Mad Play ( セ 1921 栗毛 Fair Play )
 |   `-- Mileage ( 牝 1909 栗毛 Rock Sand )
 |   |   |-- Beautiful Lady ( 牝 1916 栗毛 Fair Play )
 |   |   `-- Loved One ( 牝 1922 栗毛 Negofol )
 |-- Masterman ( 牡 1899 栗毛 Hastings )
 |        1着 - '02ベルモントS
 `-- Masthead ( 牝 1900 栗毛 Hastings )
 |   |-- Old Koenig ( 牡 1913 鹿毛 Golden Maxim )
 |   `-- Mainmast ( 牝 1918 栗毛 Superman )