Comprises:

a. (fols. 1-47) Carl Klingemann (1798-1862) [CK] and Sophie Klingemann (1822-1901) [SK]: 19 letters to Felix Mendelssohn Bartholdy (1845-1847). These letters were originally included in the bound 'Green Books' of Mendelssohn's incoming correspondence (MSS. M. Deneke Mendelssohn, b.4, d.28-53), and still bear their original numbering within the volumes. They were removed from the volumes ca. 1900, presumably at the time Karl Klingemann Jr. was compiling the selection of his father's correspondence with Mendelssohn, 'Felix Mendelssohn-Bartholdys Briefwechsel mit Legationsrat Karl Klingemann' (Essen, 1909)), but only parts of two letters were included in the published volume. The individual letters with their 'Green Book' references are as follows. All letters are by Carl Klingemann unless otherwise noted.

(fols. 1-2) 6 July 1845 (XXII 8

(fols. 3-4) 25 July 1845 (XXII 27)

(fols. 5-6) 28 Aug. 1845 (XXII 70) by SK, p.s. by CK.

(fols. 7-8) 31 Mar. 1846 (XXIII 187)

(fols. 9-10) 3 Apr. 1846 (XXIII 195)

(fols. 11-12) 11 June 1846 (XXIII 310) PS by SK

(fols. 13-14) 4 Sept.1846 (XXIV 31)

(fols. 15-20) 25 Oct. 1846 (XXIV 102) by SK and CK

(fols. 21-22) [End of 1846?] (XXIV 207)

(fols. 23-24) 13 Jan. 1847 (XXV 34)

(fols. 25-28) 18 Jan. 1947 (XXV 38) by CK and SK

(fols. 29-30) 26 Jan. 1847 (XXV 60)

(fols. 31-33) 24 Feb. 1847 (XXV 145)

(fols. 34-37) 26 Feb. 1847 (XXV 150) by CK and SK

(fols. 38-39) 19 Mar. 1847 (XXV 195)

(fols. 40-41) 23 Mar. 1847 (XXV 214)

(fols. 42-43) 30 Mar. 1847 (XXV 208)

(fols. 44-45) 25 May 1847 (XXV 278)

(fols. 46-47) 26 June 1847 (XXV 307)

Bought, 1992, from anonymous owner and given by the Friends of the Bodleian.

b. (fol. 48) Letter from Felix Mendelssohn Bartholdy to Edward Buxton of Ewer & Co., 3 Apr 1847. Donated, 1992, by Albi Rosenthal, through the Friends of the Bodleian.

c. (fols. 49-50) Letter from Cécile Mendelssohn Bartholdy to Felix, Leipzig, 13 Sept. [1840]. Photocopy. Copied from Erasmushaus cat. 895 (1999).

d. (fols. 51-52) Letter from Adolphe d'Eichthal to Isambard Kingdom Brunel, incorporating a note from Mendelssohn (in French), London, 10 July [1829]. Bought, from Sotheby's (28 Nov 2012), with financial assistance from private donors.

e. (fol. 53) Dinner invitation (in French) from Felix Mendelssohn Bartholdy to Sir Alexander Johnston, London, postmark: 1 June 1829. Held on deposit for Anderson Strathern Solicitors, Edinburgh (23 Jan 2015).

f. (fol. 54-55) Letter from Cécile Mendelssohn Bartholdy to Felix, Leipzig, 1 Sept. 1839 (postmark). Bought, from J.A. Stargardt, Berlin (13 March 2018).

g. (fol. 56) Letter from Felix Mendelssohn Bartholdy to the geologist and philanthropist Leonard Horner, London, 17 Apr. 1847, declining an invitation. In English, in the hand of an amanuensis, signed by Mendelssohn. Bought, from Otto Haas, 2020 (item 259 in Antiquariat Inlibris/Kotte Autographs cat. (Summer 2020)).

h. (fol. 57-60) Letter from Alexej L'vov to Felix Mendelssohn Bartholdy, 2/14 Dec 1844. In French. Fols. 59-60 contain biographical notes on L'vov (also in French) in a later hand. Bought, from Otto Haas, 2020 (formerly lot 479 in Stargardt/Erasmushaus joint sale, Basel, 19 Sept. 1992).