Marc'Antonio Mazzoleni

[1] Marc'Antonio's uncle Francesco operated a successful artisan workshop in Padua.

[1] Marc'Antonio's older brother Mario was to hold the chair in Natural Philosophy at the University of Padua, a position that he held for thirty-six years.

[3] Mazzoleni also helped Galileo produce other instruments, including hydrostatic balances, air thermometers, magnets and magnetic compasses for ships, and various kinds of drawing compasses for engineers and architects.

[4] For his services, Galileo paid Mazzoleni a meager salary of six crowns per year (in addition to room and board).

[1] In 1612, Mazzoleni became regulator of the clock of the University of Padua's Palazzo del Bo'.