BRUNSWICK, the duchy of, is a country of Germany, bounded on the north by the duchy of Lunenburg; on the west, by the circle of Westphalia, from which it is separated by the river Weser; on the south by Hesse, and the little territory of Piechfeld; and on the east by Thuringia, with the principalities of Anhalt and Halberstadt, and the duchy of Magdeburg. The rivers are, the Weser, the Ocker, and the Lyne; and it is fertile both in corn and pastures. It is divided into three principalities, Wolfenbuttle, Grubenhagen, and Calenberg, which also comprehends the duchy of Gottingen. The principality of Wolfenbuttle has its own dukes; but the other two belong to the elector of Hanover. The territories of the house of Brunswick are more extensive; the principal of which are the duchies of Brunswick and Lunenburg, with the county of Danneburg, which is annexed thereto. The rest are Blankenburg, Dieport, and Hoye, besides two or three smaller districts.