Aslackby, a township and a parish in Lincolnshire. The parish lies 2 miles S of Falkingham, and 3 NW from Rippingale station on the G.N.R., includes the hamlets of Graby and Millthorpe, and has a fen allotment. Post town, Falkingham, which is the money order and telegraph office. Acreage, 4078; population, 415. A commandery of the Knights Templars was founded here, in the time of Richard I., by John Ie Mareschal. A farmhouse, called the Temple, now stands on the site of its church. A castle also was founded here before 1062, and can still be traced in fosse and mounds. The living is a rectory in the diocese of Lincoln; net value, £320. The church is a handsome edifice, with an embattled tower.
