Principality of Calenberg
In this way the land ruled by the Principality of Calenberg emerged, which was formerly much larger than the Calenberg Land is today. In the 15th century it stretched as far north as Nienburg/Weser and as far southwest as Hamelin. In 1495 the Principality of Calenberg was united with the Principality of Göttingen to become the Principality of Calenberg-Göttingen.