a seaport-town of Denmark, duchy of and 15 miles E.S.E. of Schleswig. It is situated on an inlet of the Baltic, and has a good harbour and a considerable trade. Pop. 4058.

ECKTIUS or ECHTIUS, JOANNES (1483–1543), the antagonist of Luther, was born in Swabia. His family name was Mayer. He was professor at Ingolstadt, and at the Reformation disputed both with Luther and Carlstadt. At the diet of Augsburg he argued against the Protestant Confession. He wrote a work entitled Euchiridion Controversiarum; Apologia contra Bucerum; a tract on the Mass; an Exposition of Haggai; and several smaller works.