Black Gem ( 牝 1918 黒鹿毛 Black Jester )
 |-- Bulger ( 牡 1923 黒鹿毛 Bridge of Earn )
 |-- Brig o'Dee ( 牝 1926 黒鹿毛 Bridge of Earn )
 |   `-- Indiscretion ( 牝 1932 鹿毛 Hurry On )
 |   |   |-- Iskandaria ( 牝 1942 黒鹿毛 Le Gosse )
 |   |   |-- Iroquoise ( 牝 1943 黒鹿毛 Barneveldt )
 |   |   |-- Imprudence Imprudence [仏] ( 牝 1944 黒鹿毛 Canot ) 海外6勝
 |   |   |   |    1着 - 英オークス、英1000ギニー、仏1000ギニー
 |   |   |   |    2着 - モリーピッチャーH
 |   |   |-- Intrigante ( 牝 1950 鹿毛 Bozzetto )
 |   |   `-- Inquietude ( 牝 1953 鹿毛 Bozzetto )
 `-- Tourmaline ( 牝 1928 鹿毛 Tetratema )
 |   `-- Bella Mia ( 牝 1938 鹿毛 Bellacose )
 |   |   `-- Emerald Green ( 牝 1944 芦毛 Pampas Grass )