Grey Robinson (牝 1723 芦毛 Bald Galloway)
 |-- Regulus (牡 1739 鹿毛 Godolphin Arabian)
 |-- Sister to Regulus (牝 1743 鹿毛 Godolphin Arabian)
 |   |-- Sister to Regulus (牝 1748 芦毛 Hobgoblin)
 |   |-- Hobgoblin Mare (牝 1748 芦毛 Hobgoblin)
 |   |   `-- Cullen Arabian Mare (牝 1758 Cullen Arabian)
 |   |-- Coquette (牝 1765 鹿毛 Compton Barb)
 |   |   |-- Camilla (牝 1778 鹿毛 Trentham)
 |   |   |-- Sister to Driver (牝 1781 黒鹿毛 Trentham)
 |   |   |-- Trentham Mare (牝 1781 黒鹿毛 Trentham)
 |   |   |-- Driver (牡 1783 黒鹿毛 Trentham)
 |   |   `-- Egremont's Driver (牡 1783 黒鹿毛 Trentham)
 |   `-- Snap Mare (牝 1766 芦毛 Snap)
 |       `-- Heroine (牝 Hero)
 `-- Godolphin Arabian Mare (牝 1743 芦毛 Godolphin Arabian)
     `-- Snip Mare (牝 1757 芦毛 Snip)
         `-- Herod Mare (牝 1774 Herod)