The Principality of Schaumburg proper, however, was partitioned among the agnatic Schauenburg heirs into three parts, one incorporated into the Principality of Lüneburg of the Duchy of Brunswick and Lüneburg, the second becoming the County of Schaumburg-Lippe and the third continuing the name County of Schaumburg, ruled in personal union by Hesse-Cassel. All the three are now part of the state of Lower Saxony.
The Principality of Schaumburg was split into three parts: one joined with Lüneburg in Brunswick, another became Schaumburg-Lippe County, and the third retained its name as Schaumburg County, all under Hesse-Cassel's joint rule. Now, these areas form part of Lower Saxony.