Author:
Thomas Osborne (1632-1712), 1st Duke of Leeds, or his son Admiral Peregrine Osborne (1659-1729), 2nd Duke of Leeds [Viscount Osborne, Earl of Danby, Marquis of Carmarthen] [Sir Francis Child the elder
See the entries on the two Dukes in the Oxford DNB, as well as that of Sir Francis Child the elder. Both Dukes are significant; the first was a leading Tory politician and one of the ‘immortal seven’ who invited William of Orange to England, and the second was a naval adviser to Peter the Great of Russia. The present item is signed ‘Carmarthan P:’, which would seem to suggest it is the signature of the 2nd Duke, Peregrine Osborne, but the Oxford DNB states that he became Marquis of Carmarthen a few months after the present item, on his father being made Duke of Leeds on 4 May 1694.