Aylesbury, a borough and market town in Buckinghamshire on the London and North Western and Great Western Railways, 39 miles from London. The rich vale that surrounds it bears its name. Its antiquity is great, and it is associated in history with the struggles between the Britons and the Saxons, having for some years been the capital of the British kings. The parish church is a handsome Early English structure, and there are good public buildings. Besides doing a large trade in agricultural produce, bone-lace, and straw-plaits, it is famous for ducks, which are reared extensively for the London market. The parliamentary representation is merged in a division of the county. It gives its name to a marquisate, the title of which, however, is generally written Ailesbury.