"The documents gathered in this volume cut a winding path through the tumultuous final thirty-three months of Leibniz's life, from March 1714 to his death on 14 November 1716. The disputes with Newton and his followers over the discovery of the calculus and, later, over the issues in natural philosophy and theology that came to dominate Leibniz's correspondence with Samuel Clarke certainly loom large in the story of these years. But as the title of this volume is intended to convey, the letters exchanged between Leibniz and Caroline of Brandenburg-Ansbach, Electoral Princess of Braunschweig-Luneburg and later Princess of Wales, also figure prominently in their telling, and I have included their complete extant correspondence from 1714 to 1716. These letters are of particular interest inasmuch as they provide valuable insights into how and why Leibniz's correspondence with Clarke arose, and why it developed as it did, with Caroline in the role of influential go-between; whence the title, The Leibniz-Caroline-Clarke Correspondence. But there is more; for these letters provide a window into the evolving personal relationship between Leibniz and Caroline. Much of the early correspondence between Leibniz and Caroline after her arrival in England is filled with thoughtful and engaging exchanges about philosophy, literature, and politics, about people Caroline was meeting in England, about those known by Leibniz far and wide, about the new royal family in England, headed by George I (Georg Ludwig of Braunschweig-Luneburg), as well as gossip about affairs of state in both England and Europe at large. Beyond the interest they hold for Leibniz scholars in particular, many of these exchanges should also be of interest to historians of early 18th-century England and Europe, and especially to those interested in the period immediately preceding and following the Hanoverian succession to the throne of England. But even quite early on in their correspondence Leibniz seemed to sense a threat to his relationship with Caroline, and a worrisome paranoia began to creep into some of his letters to her, letters in which he expressed concerns about her continuing allegiance to him now that she had been installed in England amongst his rivals. As the correspondence progressed, Leibniz's paranoia only deepened; but it was nevertheless prophetic of a tragic truth to come. For the letters exchanged between Leibniz and Caroline document the rather sad story of the slow but steady erosion of Caroline's loyalty to Leibniz after she departed Hanover on 12 October 1714 and landed in England at Margate in Kent on 22 October as the new Princess of Wales and future Queen of England. In 1727 the Scottish poet James Thomson penned A Poem Sacred to the Memory of Sir Isaac Newton, calling him "our philosophic sun," and it was by force of the political and cultural mass of this sun that Caroline was eventually, and inexorably, drawn into its orbit, and away from Leibniz"