The Brotherhood of Mercy, also known as the Brotherhood of Mercy of Florence, is an Italian religious brotherhood that dates back to the 13th century. Its main objective is to carry out charitable works and help the most deprived in society. The brotherhood was founded in response to the great plague epidemic that struck Florence in 1248. The society's members, consisting primarily of artisans and merchants, took the initiative in caring for the sick and dying, as well as to bury the dead. Over the centuries, the Brotherhood of Mercy continued to provide social and medical assistance to the Florentine population. She opened a large hospital, L'Azienda Ospedaliero-Universitaria Careggi, which today is one of the main hospitals in the city. The brotherhood is also known for its commitment to the arts. She commissioned several important works of art, including frescoes, paintings and sculptures, which were displayed in the Church of Santa Maria della Misericordia in Florence. The Brotherhood of Mercy played an essential role in the social and religious life of Florence, contributing to the well-being of the population and the support of culture and art. Even today, it continues to pursue its charitable and humanitarian mission, while preserving its historical and artistic heritage.