From BiblePortal Wikipedia

Webster's Dictionary [1]

(n.) One of a breed of cattle, originally from Schleswig-Holstein, valued for the large amount of milk produced by the cows. The color is usually black and white in irregular patches.

The Nuttall Encyclopedia [2]

Which with Sleswick forms the Prussian province of Sleswick-Holstein ( q. v .), was till 1866 a duchy of Denmark, but in that year was annexed by Prussia.