Gerardo dei Tintori was a 12th-century nurse and hospital founder from Monza, Italy. Born around 1134 to a wealthy family of dyers, he used his inheritance to establish a medical facility for the sick and impoverished. This institution, which operated out of his own home near the River Lambro, functioned with significant autonomy under the guidance of lay brothers. Gerardo served as the hospital's director until his death on June 6, 1207, and he is now recognized as a joint patron saint of his home city.