ALDBOROUGH, a small town in the wapentake of Clare, in the West Riding of Yorkshire. It is on the river Ouse, and was formerly a Roman station, called Isurium Brigantium; near it are some remains of a druidical temple. It returns two members to parliament, who are nominally chosen by the occupiers of burghage tenures, but really by the owner of them, now the duke of Newcastle. The population has been as follows: in 1801, 445; in 1811, 464; and in 1821, 484. It is 208 miles from London.