The Wolfsburg is a medieval lowland and water castle in North Germany that was first mentioned in the records in 1302, but has since been turned into a Renaissance schloss or palace.

The wolf that gave its name to the castle is a heraldic beast on the coat of arms of the von Bartensleben family who built the edifice.

Initially it was called the Stadt des KdF-Wagens ("Town of the Strength through Joy Car") because of the industrial plant established to build the Volkswagen.

This wing of the building clearly shows how, by the end of the 16th century, the power of the von Bartenslebens was visibly demonstrated through their architecture.

These knights also watched over the trade routes where they crossed the River Aller and that entailed the construction of a fortification to protect their lordship.

Emperor Lothar III then awarded the newly founded Benedictine abbey of Kaiserdom Königslutter with diversified estates, including a Wulvosburg, that was named in connection with the village of Käsdorf.

During the Middle Ages the castle was not an enclosed site, but consisted of the bergfried and an attached building, the Old House (Altes Haus) in the present west wing.

According to this record, there were only attacks on the castle during the feud of the von Bartenslebens against Duke Otto of Lüneburg in 1464, whereby it was intended to be largely demolished (mehrentheils demoliret worden seyn).

In the early stages around 1300 the Wolfsburg only had a stone tower house (Wohnturm) on the Aller, whose precursor may have been a wooden watchtower in the style of a lowland motte.

In addition this area was protected by a curtain wall with defensive bastions or Rondellen, against which the later domestic buildings and stables, the present coach houses (Remisen) were built.

Nevertheless, it retained the character of a fortified water castle until 1840, when the protective moats were filled in as the Aller river was artificially confined and controlled.

In 1574, thanks to his great fortune, Hans von Bartensleben, the Wealthy (der Reiche), was able to begin the conversion of the castle.

The socage rendered him by the peasants of the villages of the Vorsfelder Werder provided free manual labour as well as horses and carts.

Hans the Wealthy had the Red House (Rotes Haus), a section of the building that had fallen into disrepair, demolished and erected in its place the present north wing with the entranceway to the schloss.

When he died in 1583, his relative Günzel, his brother Günther and their uncle Jakob continued the work and built the ostentatious east wing.