It was claimed to have been discovered by a student of law, Robert Milliat, next to a spring at the foot of a cliff at Arguel in the French Doubs department, just south of Besançon.
Louis I of Chalon (died 1366) Seigneur d'Arguel, married Marguerite of Vienne in 1363 (daughter of the Seigneur de Pymont Philippe de Vienne)
Arguel, Doubs | Arguel |
When his father died in 1362, his elder brother Hugh II inherited the Lordship of Arlay and Louis became Lord of Arguel and Ciuseaux.