Notes: [1] The title page for the Psalter appears on f. 17r. It is dated 1592 and Kirchring calls himself a “Guldenschreiber und Rechenmeister” (Gold writer and arithmetic master). On the final leaf, a colophon names the count and gives the date October 17, 1600. [2] The change of spelling from Oldenburg to Aldenburg likely stemmed from the fact that he was an illegitimate son of Anton Günther. His descendant, Charles Aldenburg Bentinck, preferred to say that Anton was the son of a “Morganatic marriage.” Aldenburg was the original name of the city of Oldenburg. [3] Bentinck was a younger son of the Earl of Portland, who had accompanied William and Mary to England during the Glorious Revolution in 1689. Charlotte Sophia and William had an unhappy marriage in part because she retained control of her father’s property, including the manuscript. [4] William Bentinck was a British naval officer who rose to the rank of vice-admiral. [5] Charles Aldenburg Bentinck wrote a note in the beginning of the manuscript recording the provenance from Anton II down to this gift. [6] He signed the book in 1905. It is uncertain whether his wife, Alma Martha (Paget) Bentinck (1854–1947), inherited the book upon her husband’s death in 1938. They were childless, so the Henry Bentinck who signed the book in 1943 might be a cousin. [7] Sotheby’s, London, Western Manuscripts and Miniatures, Lot 83. [8] See Jeremy Dibbell, “Auction Preview: Arcana Collection,” Fine Books & Collections (June 2010), https://www.finebooksmagazine.com/blog/auction-preview-arcana-collection. [9] Christie’s, London, The Arcana Collection Part II: Important Rare Books and Manuscripts, Lot 18.