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 heiress of his line, Johanna of Polanen (1392–1445), married Engelbert I of Nassau (1370–1442; his sarcophagus is in the Grote Kerk in Breda). Through her, the city came into the possession of the House of Nassau, where it remained until 1795, passing to William I of Orange (1533–1584), stadtholder of Holland, Zeeland, and Utrecht and leader of the Dutch revolt. Thus, the baron of Breda was also Count of Nassau in the Holy Roman Empire, Prince of Orange, and stadtholder of the Dutch Republic (from 1572–1650, 1672–1702, 1747–1795). Breda remained part of the barony of Breda until it was captured