The Order of the Blessed Virgin Mary of Mercy, also known as the Mercedarians, is a Catholic religious order founded in 1218 in Barcelona, Spain. Established by Saint Peter Nolasco, the order's primary mission is to rescue Christians who have been captured and enslaved by Muslim forces. The Mercedarians take a special vow to offer themselves as hostages if necessary to secure the freedom of others. Members of the order live a communal life centered on prayer, service, and the pursuit of justice. They engage in various ministries, including education and pastoral care, while promoting devotion to the Blessed Virgin Mary. The order continues to operate in several countries, focusing on social justice and the dignity of all individuals.