 She was a great-granddaughter of Sand Blast, whose other descendants have included Madam Gay.Medoc was bought by Hugh Molyneux, 7th Earl of Sefton and sent into training with Reg Hobbs at his Rhonehurst Stable in Upper Lambourn.Hobbs came to widespread public attention when he trained the American stallion Battleship to win the 1938 Grand National, ridden by his son Bruce.