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In antiquity , Oscheret ( pagus Oscarensis , French pays d'Oscheret ) was the pagus (country) of the Lingones in the lower valley and plain of the Ouche . In the Middle Ages , the same region was a county ( comitatus ) of the kingdom of Upper Burgundy and an archdeaconry of the diocese of Chalon-sur-Saone .

Count Anscar and his family emigrated to Italy in the late 880s and he became Margrave of Ivrea there.