 Tuby was born Giambattista Tubi in Rome in 1635, and first trained as a sculptor in Italy, before coming to France sometime after 1660.He was first engaged by the Gobelins Manufactory, headed by Charles Le Brun, the chief artist for the King.In 1664–65, he was employed making sculptures for the grottoes and terraces of the Chateau of Saint-Germain-en-Laye.