In 805 Charlemagne issued a fourth ban on the export of weapons to the Slavs. According to Moissac Chronicle Charlemagne's son Charles laid siege to "Canburg" (somewhere on the Elbe in Bohemia). Nobody knows where Canburg was situated. A Frankish king, like Charlemagne, (center) depicted in the Sacramentary of Charles the Bald (about 870) Charlemagne (c. ... The Slavic peoples are the most numerous ethnic and linguistic body of peoples in Europe. ... The Elbe River (Czech Labe, Sorbian/Lusatian Łobjo, Polish Łaba, German Elbe) is one of the major waterways of central Europe. ... Bohemia Historical map of Bohemia Bohemia is also a place in the State of New York in the United States of America: see Bohemia, New York. ...