DIEZ  , a

town of Germany, in the Prussian province of Hesse-Nassau, romantically situated in the deep valley of the Lahn, here crossed by an old bridge, 3o m . E. from Coblenz on the railway to Wetzlar . Pop . 4500 . It is overlooked by a former castle of the counts of Nassau-Dillenburg, now a prison . Close by, on an eminence above the river, lies the castle of Oranienstein, formerly a Benedictine nunnery and now a cadet school, with beautiful gardens . There are a Roman Catholic and two Evangelical churches . The new part of the town is well built and contains • numerous pretty villa residences . In addition to extensive iron-works there are sawmills and tanneries . In the vicinity are Fachingen, celebrated for its mineral waters, and the majestic castle of Schaumburg belonging to the prince of Waldeck,-Pyrmont .