However, there are mtDNA identified errors in Family 5 which show that the family actually descends from three separate founder mares - see The Massey Mare entry; however the horses mtDNA tested so far in branch 5-f which descends from this mare all share the correct Family 5 haplotype

Grandam of 1) the outstandingly successful stallion Florizel, sire of at least 175 winners of £75,901, the sire of top class racehorse and outstanding sire Diomed (1780 Derby, sire in America of the top class racehorses Lavinia, [Ball's] Florizel, and Duroc (sire of the great American Eclipse);

of 2) Bourdeaux (1774 Jockey Club Plate [4yo division], Great Subscription Purse [4yo division]; of 3) high class racemare Sting (1779 Claret Stakes, Jockey Club Plate [4yo division]); of 4) Flimnap, fairly successful sire in the United States; grandam of Portia (1791 Oaks); and of top class Cayenne (1793 Great Subscription Purse [4yo division] York, 1794 1200 Guineas Stakes)