Balthasar de Beaujoyeulx (modernized French: Balthazar de Beaujoyeux [baltazaʁ də boʒwajø]), originally Baldassare da (or di) Belgiojoso (modern Italian pronunciation: [baldasˈsaːre da/di beldʒoˈjoːzo]; died c. 1587 in Paris) was an Italian violinist, composer, and choreographer.[1][2]