Antonio Stradivari (Italian pronunciation: [anˈtɔːnjo stradiˈvaːri]; 1644 – 18 December 1737) was an Italian luthier and a crafter of string instruments such as violins, cellos, guitars, violas, and harps. Stradivari is generally considered the most significant and greatest artisan in this field. The Latinized form of his surname, Stradivarius, as well as the colloquial, Strad, is often used to refer to his instruments. It is estimated that he made 1,000 to 1,100 instruments and that around 650 of these instruments survive, including 450 to 512 violins.