Breda Formation Formation. The Breda Formation can be a couple of meters to (in the Roerdal Graben) more than thick. The top is formed by an erosional nonconformity in the south and east of the Netherlands. In the west the contact with the Pliocene Oosterhout Formation is more gradual. In the Roerdal Graben the mostly Pliocene Kiezeloolite Formation is sometimes on top of the Breda Formation. Locally the Breda Formation can be subdivided into members: the Aalten Member (silty calcareous clay, rich in shells), the Eibergen Member (clay alternating with thin sand layers, with a basal conglomerate in which shark teeth and
Breda had a population of in ; the metropolitan area had a population of . It is part of the Brabantse Stedenrij. In the 11th century, Breda was a direct fief of the Holy Roman Emperor, its earliest known lord being Henry of Brunesheim (1080–1125). The city of Breda obtained a municipal charter in 1252. After that Breda had the rights to build fortifications. The city constructed brick walls and Roman-style gates. In 1327, Adelheid of Gaveren sold Breda to Duke Johannes III of Brabant. In 1350, the fief was resold to Johannes II of Wassenaar (d. 1377). In 1403, the