The County of Ravensberg was a historical county of the Holy Roman Empire. Its territory was in present-day eastern Westphalia, Germany, at the foot of the Osning or Teutoburg Forest.
John III, Duke of Cleves and Count of Mark, known as John the Peaceful, was the Lord of Ravensberg, Count of Mark, and founder of the United Duchies of Jülich-Cleves-Berg.
County of Ravensberg
…from 1521 a part of the United Duchies of Jülich-Cleves-Berg 1511–1539 John 1539–1592 William V…
John depicted in Johann III with the Virgin and Child
John III, Duke of Cleves, and his only son William.