(Daniel), the Jew. A prize-fighter who held the belt at the close of the last century, and in 1791 opened the Lyceum in the Strand to teach “the noble art of boxing.” (1719-1791.)
When Humphreys stood up to the Israelite's thumps In kerseymere breeches and touch-me-not pumps.
Mendoza the Jew.
The Odiad (1798) is a mock heroic on the battle between Mendoza and Humphreys. The Art of Boxing (1799) was written by Mendoza. Memoirs of the Life of Daniel Mendoza (1816). See also Pugilistica, vol, i. (1880).
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
More on Mendoza from Infoplease: