Vitz-sur-AuthieVitz-sur-Authie is a commune in the Somme department in Hauts-de-France in northern France.GeographyThe commune is situated northeast of Abbeville, on the D121 road and on the border with the Pas-de-Calais department.HistoryAlso known as Vitz-lès-Willancourt, the commune was once the seigneurie of the d'Abbeville family.