DIEKIRCH, a small town of Luxemburg, situated on the banks of the Sure. Pop. (193o) 3,858. Its name is said to be derived from Dide or Dido, granddaughter of Odin and niece of Thor, whose name is also associated with the mountain once known as Thorenberg (now Herrenberg) behind the town. Die kirch was an important Roman station, and in the 14th century John of Luxemburg, king of Bohemia, fortified it. In the i9th century during their occupation the French changed the fortifica tions into boulevards. Diekirch is an administrative and tourist centre.