(Maffio). A young Italian nobleman, whose life was saved
by Gennaro at the battle of Rimini. Orsini became the staunch friend of
Genaro, but both were poisoned at a banquet given by the Princess
(Donizetti: Lucrezia di Borgia, an opera.) This was the name
of the conspirator who attempted the life of Napoleon III.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894