John William Friso is the most recent common ancestor of what
John William Friso, Prince of Orange John William Friso, Prince of Orange-Nassau (Dutch: "Johan Willem Friso van Oranje-Nassau" ; 14 August 1687 – 14 July 1711) became the titular Prince of Orange in 1702. He was stadtholder of Friesland until his death by drowning in the Hollands Diep in 1711. Friso and his wife, Marie Louise, are ancestors of all European monarchs occupying the throne today.
Aurochs The aurochs ( or ; pl. aurochs, or rarely aurochsen, aurochses), also urus, ure ("Bos primigenius"), is an extinct species of large wild cattle that inhabited Europe, Asia, and North Africa. It is the ancestor of domestic cattle. The species survived in Europe until the last recorded aurochs died in the Jaktorów Forest, Poland, in 1627.