Waldeck, or WALDECK-PYRMONT, a small principality of Germany now controlled by Prussia, consists of two parts, Waldeck, between Westphalia and Hesse-Nassau, and Pyrmont, a small patch between Lippe, Westphalia, Brunswick, and
Hanover. The country is high-lying and poor, with a total area of 438 sq. m. and a population of (1890) 57,283, of which 8104 belong to Pyrmont. The capital is Arolsen (q.v.). Pyrmont, 15 miles E. of Detmold (pop. 1500), lies in the valley of the Emmer, and has famous mineral springs. The arrangement by which Prussia took over all essentials of government except formal ones was made in 1867, and renewed in 1877 and 1887. Daughters of the princely house were married to the king of the Netherlands in 1879 and to the Duke of Albany in 1882.