Origins and Mission
According to the surviving accounts, Mansuetus came from the British Isles and is traditionally described as of Irish or Scottish origin. After a period of study in Rome, he is said to have been sent into Gaul to evangelize the region of the Leuci, the people centered on the town of Toul, becoming its first bishop.
Sources differ on the precise dates of his life and episcopate: the entry on him in English Wikipedia places his arrival as bishop in 365 and his death in 375, while other hagiographical accounts set his episcopate roughly a generation earlier, from about 338 until about 350. All accounts agree that he belongs to the 4th century and that he served a long episcopate.
Ministry at Toul
Mansuetus is remembered for the simplicity of his manner of life: he is said to have built himself a dwelling of interwoven twigs in the woods, near which he raised an oratory dedicated to Saint Peter, where he spent his time in prayer. He devoted roughly four decades to preaching among the Leuci, an effort the sources describe as meeting with considerable success.
He is credited with establishing the early churches of the city, including one honoring Saint John the Baptist and another dedicated to the Mother of God and Saint Stephen, the latter of which is said to have later become the cathedral of Toul. His long and fruitful labors gave rise to his reputation as the 'Apostle of Lorraine.'
Traditional Accounts
Later tradition attributes miracles to Mansuetus, though these come from medieval lives rather than contemporary record. He was believed to have the gift of healing and is said to have cured lepers.
The best-known story, reflected in his iconography, holds that he restored to life the drowned son of the prince or governor of Toul; in images he is shown as a bishop beside a boy holding a ball, the child said to have died while playing and to have been raised by the saint's prayers. These accounts are traditional and are recorded only in the medieval hagiography.
Relics and Veneration
Mansuetus is said to have been buried at the church of Saint Peter in Toul. His relics were translated in 971 under Saint Gerard of Toul, and various lives of the saint were composed in the Middle Ages: the earliest was written by Adso of Montier-en-Der at the request of Gerard of Toul in the mid tenth century, with shorter and metrical versions following in the eleventh and twelfth centuries.
During the upheaval of the French Revolution, in 1790, his relics were divided among the canons of the church of Toul to prevent their destruction. As a saint of the pre-schism Western Church, he is venerated as Orthodox alongside his commemoration in the Roman Catholic diocese of Toul, of which he is patron.
