What is "rustici"

The name Rustici is shared by these people:

• Cristoforo Rustici, known as il Rusticone, (1552 – 1641), an Italian painter
• Francesco Rustici, known as Il Rustichino (c.1592-1625), a baroque painter of the Sienese School
• Giovanni Francesco Rustici (1474-1554), an Italian sculptor
• Marco di Bartolomeo Rustici (c.1393-1457), a Florentine goldsmith
• Vincenzo Rustici (1556 – Siena), an Italian painter