Rendsburg (Danish: Rendsborg) is a town on the Kiel Canal in the northeastern part of Schleswig-Holstein, Germany. It is the capital of the Kreis (district) of Rendsburg-Eckernförde. Population: 28,488 . Its foundation date is unknown. Rendsburg was first mentioned in 1199. An old form of its name was Reynoldsburgh: see . It became a part of Holstein in the 13th century, but was transferred to Schleswig in 1460. Many times the town passed from Danish to German control and vice versa. In… (More on Rendsburg)