Sarah Churchill, Duchess of Marlborough
James Moore assumed the position of clerk of the works at Blenheim Palace, completing and furnishing the house after Sarah Churchill, Duchess of Marlborough, quarreled with her architect, John Vanbrugh; Moore had first appeared as the Duchess's "glass man", providing pier glasses in the house. By 1714 the Duchess referred to him as "my oracle, Mr. Moore" who "certainly has very good sense and I think him very honest and understanding in many trades besides his own."