LUXEMBURG, a city of the Austrian Netherlands, and capital of a duchy of the same name. It is seated partly on a hill, and partly on a plain; it is very strong both by art and nature. It is but indifferently built, though there are some good stone houses in it. There is nothing very remarkable among the structures but the Jesuits church; which is a handsome edifice, after the modern taste. It was taken by Louis XIV. in 1684; who so augmented the fortifications, that it is now one of the strongest towns in Europe. It was ceded to Spain by the treaty of Ryswick; but the French took it again in 1701, and gave it up to the house of Austria by the treaty of Utrecht. It is 25 miles south-west of Treves, and 100 west of Mentz. E. Long. 6. 10. N. Lat. 49. 52.