died on 15 February 1632, and was buried in Westminster Abbey. Correspondence His surviving letters cover practically the whole history of foreign affairs in the period 1610–1628. His letters as ambassador at The Hague, January 1616 to December 1620, were first edited by Philip Yorke, in 1757; his correspondence from The Hague in 1627 by Sir Thomas Phillipps in 1841; other letters are printed in the letter collection Cabala from the 17th century, and in Thomas Birch's Court and Times of James I and Charles I, but most remained in manuscript among the state papers. His regular correspondent John Chamberlain kept up with Carleton from 1597 to the end of his life in 1628, and 452 of Chamberlain's letters survive. John Hales was employed by Carleton to report on the proceedings of the Synod of Dort, and the correspondence was published in 1659. Carleton and Chamberlain belonged to an intellectual circle including also Thomas Allen, the physician William Gent, William Gilbert and Mark Ridley. Carleton's letters are considered, in particular, a major source for information on the patronage networks of the period, in terms of their actual functioning. When Carleton's family connection Henry Savile died in 1622, leaving the position of Provost of Eton College vacant, Carleton took great interest in the post on his own behalf (he had expressed an interest to Chamberlain already in 1614). It was supposed to be for a cleric, but Savile was a layman. Thomas Murray became Provost; but he died in 1623. Buckingham would have the last word, and the Spanish match interfered; Carleton played the princess card of the favour of Elizabeth of Bohemia, but the nomination had become a free-for-all. Murray's widow had the provostship for while to help support seven children; Robert Aytoun, rumour had it, might marry her. Carleton gave Buckingham a marble chimney for York House, while his colleague Wotton gave pictures. In the end the post went to Wotton in 1624 who had reversions of legal offices that could be manipulated to satisfy William Becher, another diplomat with his hat in the ring, and with a definite promise from Buckingham. Family Carleton married in November 1607 the widowed Anne, Lady Tredway (née Gerrard), daughter of George Gerrard and Margaret Dacres, Margaret married Henry Savile as her second husband. Anne died in 1627, leaving no living children. He then married in 1630 Anne (née Glemham), widow of Paul