In 515, the basilica became the center of a monastery built on land donated by Sigismund of Burgundy, the first king of the Burgundians to convert from Arianism to Trinitarian Christianity.
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Roman Agaunum, the modern Saint-Maurice in the canton Valais in southwesternmost Switzerland, was a minor post confined between the Rhône and the mountains along the well-travelled road that led from Roman Genava, modern Geneva, over the Alps by the Great St. Bernard Pass to Italy.
The territory of Salins, which was enfeoffed in the 10th century by the Abbey of Saint Maurice-en-Valais to the counts of Mâcon, remained in possession of their descendants till 1175.
Agaunum |
In 535, Sigismund's remains were recovered from the well at Coulmiers and buried in the monastery at Agaune.