A council was held at Chalon by the papal Apocrisiarius Aldebrannus (Hildebrand) in 1065, to adjudge the ownership of the church of Spinola. The Bishop of Chalon Guido (Wido) was present.J.-D. Mansi (ed.), Sacrorum conciliorum nova et amplissima collectio, editio novissima, Tomus XIX (Venice 1774), pp. 843-844. Guido's (Guy) presence creates a problem, since the dates usually assigned to his episcopacy are 1044–c. 1058, while Hildebrand did not become Apocrisiarius (Archdeacon) until 1059.
