Dun Arabian Mare (�� 1718 Lord Oxford's Dun Arabian)
 `-- Miss Slamerkin (�� 1729 ���� Young True Blue)
     |-- Bustard (�� 1741 ���� Crab)
     |-- Othello (�� 1743 ���� Crab)
     |-- Portmore's Othello (�� 1743 ���� Crab)
     |-- Oroonoko (�� 1745 ���� Crab)
     |-- Duchess (�� 1748 ���� Whitenose[Portmore's])
     |   |-- Le Sang (�� 1759 ���� Changeling)
     |   |-- Dux (�� 1761 ���� Matchem)
     |   |-- Chymist (�� 1765 ���� Matchem)
     |   `-- Pyrrha (�� 1771 ���� Matchem)
     `-- Crab Mare (�� 1750 ���� Crab)
         |-- Whittington Mare (�� 1754 ���� Whittington)
         |-- Regulus Mare (�� 1757 ���� Regulus)
         `-- Turk (�� 1763 ���� Regulus)