Nienburg

Nienburg was the eastern Hoya holding on the middle Weser, centred on Nienburg town. In 1337 it was held by John II of the Hoya family.

In 1345 John divided the county with his brother Gerhard III, establishing a separate Nienburg branch. The elder Hoya branch died out in 1497, and Count Jobst I reunited the lands under his rule at Nienburg. In 1582 the county passed to the Welf dukes of Brunswick-Lüneburg.