Poupardin, René (1911). „Lorraine”. Ур.: Chisholm, Hugh. Encyclopædia Britannica (на језику: енглески). 17 (11 изд.). Cambridge University Press. стр. 9—12; see page 12 ;lines 3 and 4:= " At his death in February 1766 the two duchies of Lorraine and Bar became definitively incorporated in the kingdom of France.".
