sentences:  James Stuart, the Old Pretender, was a pretender to the throne from 16 September 1701 until his death on 1 January 1766, a total of 64 years 108 days.Prince Philip, Duke of Edinburgh has been the monarch's spouse (prince consort) since 6 February 1952, for a total of , making him the longest-serving consort overall.The Queen consort with the longest tenure was Charlotte of Mecklenburg-Strelitz, who was George III's consort for , between 1761 and 1818.