ALENZON, a large handsome town of France, in lower Normandy, with the title of a duchy. It is surrounded with good walls, and flanked with towers. The castle was formerly a place of great consequence, and has held out long sieges. It has but one parish-church, which has a bold and noble front. Among the nunneries, that of St Clair is most remarkable. It is seated on the river Sarthe, in a vast open plain, which produces all sorts of corn and fruit. Near it there are quarries of stone fit for building, wherein are found a fort like Bristol stones. The linen made at Alençon is very good, and sells at Paris. It is 20 miles north of Mans, 63 south-west of Rouen, and 88 south-west of Paris. Lon. o. 10. N. lat. 48. 25.