Andrea Gallerani was a 13th-century soldier and religious figure from Siena who established the Frati della Misericordia. After killing a man he believed was a blasphemer during a moment of anger, he was forced into exile. This experience prompted a profound spiritual transformation, leading him to seek a life of penance. Upon returning to his home city, he dedicated himself to charitable works and founded both a hospital and a religious association to serve the community.
Life and devotion

Born to a nobleman in Siena, Gallerani initially served as a prominent soldier. Following his exile, he returned to the city to pursue a penitential lifestyle. In 1240, he founded the Frati della Misericordia, an association that continued until 1308. He passed away in Siena on 19 March 1251, and his remains were placed in the Basilica di San Domenico.
Veneration and legacy
The Republic of Siena officially approved his religious association in June 1251. Later, the local bishop and Pope Pius V granted indulgences to those visiting his tomb. Gallerani was beatified by Pope Pius VI in 1798. He is commemorated in the Catholic tradition on his feast day, 19 March.
