John II of Anjou (1425 - 1470, in Barcelona) was Duke of Lorraine from 1453 to his death. He inherited the duchy from his mother, Duchess Isabelle, during the life of his father, duke Rene of Anjou, also Duke of Lorraine and titular king of Naples. He was better known as the Duke of Calabria, and spent most of his time engaging in plots for Angevin recovery of Naples.
The original kingdom of Lorraine was the northern part of the territories allotted by the treaty of Verdun (August 843) to the emperor Lothair I., and in 855 formed the inheritance of his second son, King Lothair.
This kingdom of Lorraine was situated between the realms of the East and the West Franks, and originally extended along the North Sea between the mouths of the Rhine and the Ems, including the whole or part of Frisia and the cities on the right bank of the Rhine.
Attacked by the emperor, the duke of Lorraine was forced at the treaty of Amance (1218) to acknowledge himself the vassal of the count of Champagne, and to support the count in his struggles against his ancient ally the count of Bar.