(c.1717 - 1782), s. of Nathaniel Castleton of St Benet Fink, London; Trin. Oxf. 1734; DCL 1754.
1740 - 1 Turin (betw. Oct. 1739 and Sep. 1740), Florence (by 4 Oct. - Nov.), Pisa, Leghorn, Siena, Rome (Nov. 1740 - 3 Mar. 1741), Naples (5 - 17 Mar.), Rome (19 Mar. - 4 May)
He was possibly the 'Castleton' at Turin some time between October 1739 and September 1740.1 In October he was part of a group in Florence which included Samuel Dashwood, George Pitt and his tutor Edward Holdsworth;2 the four travelled together to Rome, going through Pisa, Leghorn and Siena early in November 1740.3 In Rome Castleton shared lodgings with Pitt,4 near Lord Lincoln, and in March Lincoln invited Pitt, Dashwood and Castleton to dine with Lady Pomfret, who had previously entertained them in Florence.5 Castleton left Rome on 4 May 1741, having made an expedition to Naples in March: '[Mr Castleton] generously took me with him to Naples, in company with the E. of L[incoln]', wrote James Russel, who later dedicated a plate in the first volume of his Letters to 'Nath. Castleton'.6
1. Spence Letters, 421. 2. Pomfret jnl.MSS (4, 10, 21, 25, 27, 30 Oct. 1740). 3. Newdigate MSS, B 1620 (S. Dashwood, 5 Nov. 1740). 4. AVR SA, S.Lorenzo in Lucina 1741. 5. Pomfret Corr., 3:116. 6. Russel, Letters, 1:58.