LONDON. 60 days Bill of Exchange of £300. black. Handwritten. Signed by Elizabeth Margrave and endorsed by Nathan Mayer Rothschild (for his bio, see previous lot). Elizabeth, Margrave of Brandenburg-Ansbach and Princess Berekely (granted this title by the Holy Roman Emperor Francis II), was the thirdchild of the 4th Earl of Berkely. She was an author and playwright and a well-known Lady of Society.