Ruthenia ( 牝 1923 鹿毛 Lemberg )
 `-- Fairday ( 牝 1930 鹿毛 Fair Play )
 |   |-- Lady Day ( 牝 1934 鹿毛 Haste )
 |   |   `-- Eight Days ( 牝 1950 鹿毛 Eight Thirty )
 |   |-- Fair Weather ( 牝 1940 鹿毛 Sickle )
 |   |   |-- Shy Katie ( 牝 1945 鹿毛 Roman )
 |   |   |-- Cat Key ( 牝 1949 鹿毛 Bull Lea )
 |   |   |-- Fair Ruler ( 牡 1952 鹿毛 Nasrullah )
 |   |   `-- Nasy Lady ( 牝 1954 鹿毛 Nasrullah )
 |   |-- トリプリケート ( 牡 1941 栗毛 Reigh Count )
 |   `-- Fair Replica ( 牝 1952 鹿毛 Bernborough )
 |   |   `-- Royal Patrice ( 牝 1959 鹿毛 Royal Charger )