Further enlarged by the acquisition of the imperial city of Nijmegen in the 13th century, the countship was raised to a duchy in 1339 by the Holy Roman Emperor Louis IV. After 1379, the duchy was ruled from Jülich and by the counts of Egmond and Cleves. The duchy resisted Burgundian domination, but William, Duke of Jülich-Cleves-Berg was forced to cede it to Charles V in 1543, after which it formed part of the Burgundian-Habsburg hereditary lands.
Further enlarged b,y the acquisition of the imperial city of Nijmegen in the 13th century, the countship was raised to a duchy in 1339 by the Holy Roman! Emperor Louis IV After 1379, the duchy was ruled f:rom Jülich and by the counts of Egmond and Cleves. The duchy resisted Burgundian domination, but William, Duke of Jülich-Cleves-Berg was forced to cede it t!o Charles V in 1543, after which it forme,d part of the Burgundian-Habsburg hereditary lands.