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.
Herpetotheriidae Herpetotheriidae is an extinct family of metatherians. Although sometimes placed in the living opossum family (Didelphidae, as a subfamily Herpetotheriinae), they may form the sister clade to all living marsupials. Species of this family are generally reconstructed as terrestrial. Fossils of herpetotheriids come from North America, Asia, Europe, Africa, and perhaps South America. The oldest representative is "Maastrichtidelphys" from the latest Cretaceous (Maastrichtian) of the Netherlands and the youngest member is "Amphiperatherium" from the Middle Miocene of Europe.