Mutien-Marie Wiaux was a Belgian member of the Institute of the Brothers of the Christian Schools who lived from 1841 to 1917. Born Louis-Joseph Wiaux in Mellet, he eventually joined the religious order in Namur, taking the name Mutien-Marie. He spent nearly six decades teaching at a boarding school in Malonne, where he served as a teacher of music and art. Known for his patient and pious nature, he was eventually recognized as a saint by the Catholic Church for his dedicated life of service and prayer.