Gerhard VII, Duke of Jülich-Berg was the son of William VIII of Jülich, Count of Ravensberg and Adelheid of Tecklenburg. Gerhard was the second duke of the combined Duchy of Jülich-Berg but the 7th Gerhard in the House of Jülich.
Upon his father's... Wikipedia
Born: 1416, Burg Lülsdorf, Niederkassel, Germany
Died: August 19, 1475 (age 59 years), Lülsdorf, Niederkassel, Germany
Great-grandparents: Gerhard VI of Jülich, Count of Berg and Ravensberg and Margaret of Ravensberg
Grandparent: William II of Berg
Great grandchildren: William, Duke of Jülich-Cleves-Berg, Anne of Cleves, Sibylle of Cleves, and more
Children: William IV, Duke of Jülich-Berg, Adolf von Jülich, and Anne von Jülich