Death at Blenheim PalaceThe marriage between the Duke of Marlborough and 17 year old Consuelo Vanderbilt, the American railroad heiress, was the talk of two nations when it occurred in 1895. By 1903, the Duchess had produced the requisite heir and a spare, and the Duke had taken a lover, the exotic, erotic Gladys Deacon. Kate and Charles are introduced to this uncomfortable menage a trois when they come to Blenheim Palace: Kate to work on a book about King Henry II and Fair