John William Friso is the most recent common ancestor of what
Dutch monarchs family tree: The following is a family tree for the Princes of Orange, a line which culminated in the Dutch monarchy with the accession of Prince William VI to the newly created throne of the Netherlands in 1815. Dutch monarchs family tree:  The family lineage is of note as John William Friso is the most recent common ancestor of all the current monarchs of Europe. 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.
family tree for the Princes of Orange