William ofJülich-Cleves-Berge (William I of Cleves, William V ofJülich-Berg) (German: Wilhelm der Reiche; 28 July 1516 – 5 January 1592) was a Duke of Jülich-Cleves-Berg
Duchies ofJülich-Cleves-Berg was a territory in the Holy Roman Empire between 1521 and 1666, formed from the personal union of the duchies ofJülich, Cleves
and the Duchy ofJülich played a historic role from the Middle Ages up to the 17th century. Jülich stands in the Rur valley on the banks of the river Rur