Brandenburg Full definition of Brandenburg Proper noun (geography ) Brandenburg an der Havel , a German town . (geography ) Land Brandenburg , a state of modern Germany . (geography, historical ) The land s of Brandenburg (Mark Brandenburg , Provinz Brandenburg ), province s of Prussia from 1815 to 1946. 1759 , George Sale et al., The Modern Part of an Universal History , : History of the German Empire , page 2 :Since the reign of Charlemagne , this country is divided into High and Low Germany ... the provinces of Lower Germany towards the north conÅ¿iÅ¿t of the Low Country of the Rhine , Triers , Cologn , Mentz , WeÅ¿tphalia , HeÅ¿Å¿e , BrunÅ¿wic , MiÅ¿nia , LuÅ¿atia , High Saxony upon the Elbe , Low Saxony upon the Elbe , Mecklenburg , Lauenburg , Brandenburg , Magdeburg , and Pomerania . Noun A kind of decoration for the breast of a coat , sometimes only a frog with a loop , but in some military uniforms enlarged into a broad horizontal stripe. SmollettHe wore a coat ... trimmed with Brandenburgs . © Wiktionary