Born at Fabriano at the beginning of the fifteenth century, Blessed Constantius received the Dominican habit at the age of fifteen. He was noted for his austere and prayerful life, as well as his efforts in promoting peace. As prior at Fabriano, at Perugia, and at Ascoli he laboured to restore regular life. He died at Ascoli on February 24, 1481.
God of justice and truth, you made Blessed Constantius renowned for his unceasing prayer and his zeal for peace. By the help of his prayers may we walk in the path of justice and reach everlasting peace and glory. We ask this through our Lord Jesus Christ, your Son, who lives and reigns with you and the Holy Spirit, one God, for ever and ever.