Jean Bouchet, Les annalles dacquitaine (Paris, 1524), fol 7v (Book I c.5), records that Constantius married Helena, daughter of Cloel [i.e. Coel], and had three sons with her: the name of the eldest was unknown, the second and third were Lucius (bearing the name of King Lucius his grandfather - in fact, according to Geoffrey of Monmouth, Lucius died without an heir) and Constantine. For this he refers to the work of `Johannis monumetensis' and a hymn beginning `Gaude lucionium', connected to the cathedral church of Lucon in Poitou. According to Bouchet, Lucius had killed his elder brother, was banished and forced to assume the religious life, and having been put aboard a ship with a number of fellow Christians had eventually come to land at Lucon, on the west coast of France, where he founded a fine abbey. Bouchet says nothing about missionary activity in Switzerland.