Duchess ( 牝 1748 鹿毛 Whitenose[Portmore's] )
 |-- Le Sang ( 牡 1759 鹿毛 Changeling )
 |-- Dux ( 牡 1761 鹿毛 Matchem )
 |-- Chymist ( 牝 1765 鹿毛 Matchem )
 `-- Pyrrha ( 牝 1771 鹿毛 Matchem )
 |   |-- Herod Mare ( 牝 1780 Herod )
 |   |-- Fenwick's Herod Mare ( 牝 1780 鹿毛 Herod )
 |   |   |-- King Fergus Mare ( 牝 1790 鹿毛 King Fergus )
 |   |   `-- Beningbrough ( 牡 1791 鹿毛 King Fergus )
 |   |            1着 - '94英セントレジャー
 |   |-- Fenwicks Herod Mare ( 牝 1780 鹿毛 Herod )
 |   |   `-- Zechariah ( 牡 1796 鹿毛 King Fergus )
 |   |-- Young Marske Mare ( 牝 1786 鹿毛 Young Marske )
 |   |   `-- Phoenomenon Mare ( 牝 1796 鹿毛 Phoenomenon )
 |   `-- Beatrice ( 牝 1791 鹿毛 Sir Peter )
 |   |   |-- Vicissitude ( 牝 1800 鹿毛 Pipator )
 |   |   |-- Streatlam Lass ( 牝 1803 鹿毛 Pipator )
 |   |   `-- Remembrancer Mare ( 牝 1812 鹿毛 Remembrancer )