Bartolomeo Giuseppe Antonio Guarneri, del Gesù (Italian pronunciation: [dʒuˈzɛppe ɡwarˈnɛːri]; 21 August 1698 – 17 October 1744) was an Italian luthier from the Guarneri family of Cremona. He rivals Antonio Stradivari (1644–1737) with regard to the respect and reverence accorded his instruments, and for many prominent players and collectors are the most coveted of all.