Sigma ( 牝 1933 鹿毛 Congreve )
 |-- Tivoli ( 牡 1940 鹿毛 Commuter )
 |-- Tanagra ( 牝 1946 鹿毛 Pont l'Eveque )
 |   |-- Mytilene ( 牝 1951 栗毛 Advocate )
 |   |   `-- Athenes ( 牝 1961 栗毛 Cardanil )
 |   `-- Danae ( 牝 1952 栗毛 Advocate )
 |   |   `-- Caliope ( 牝 1959 栗毛 Cardanil )
 |-- Tarento ( 牡 1949 鹿毛 Advocate )
 `-- Itaca ( 牝 1951 鹿毛 Advocate )
 |   `-- Troy ( 牝 1966 鹿毛 Right of Way )
 |   |   `-- Ionia ( 牝 1983 鹿毛 Keats )