Bad Bederkesa (Low German: Beers) is a village and a former municipality in the district of Cuxhaven, in Lower Saxony, Germany.

They again lost this pawn to the city of Bremen, when in 1381 its troops stopped the three Mandelsloh brothers in their attempt to leverage influence from lending to Prince-Archbishop Albert II into territorial power.

In 1381 the city's troops successfully ended the brigandage and captured the Castle of Bederkesa [de] and the pertaining bailiwick.

In 1386 the city of Bremen became the liege lord of the noble families, holding the estates of Altluneburg [de] and Elmlohe, previously vassals of the Knights of Bederkesa.

In 1411 the jointly ruling dukes of Saxe-Lauenburg, father Eric IV and his sons Eric V and John IV, pawned their share in the Vogtei over the Bederkesa Bailiwick and in the castle to the Senate of Bremen including all "they have in the jurisdictions in the Frisian Land of Wursten and in Lehe [de], which belongs to the afore-mentioned castle and Vogtei".