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.
John Finlayson (disciple) John Finlayson or Finleyson (1770–1854) was a disciple of Richard Brothers. Finlayson was born in Scotland in 1770. His descendants make him the second son of Colonel John Hamilton M'Finlay, who married, about 1765, Lady Elizabeth Mary Alexander, eldest sister of the last Earl of Stirling. He was originally a writer at Cupar, Fife, and removed thence to Edinburgh. His relations with Brothers, which began in 1797, are detailed in the article on that enthusiast. He printed at Edinburgh a couple of pamphlets before repairing to London. In London he was 'in considerable practice as a house agent.' Brothers led him to change the spelling of his name, by telling him his ancestors had some 'fine leys' of land granted them for deeds of valour. Brothers, who died (1824) in Finlayson's house at Marylebone, made it his dying charge to his friend that he should write against a rival genius, Bartholomew Prescot of Liverpool. This Finlayson did, describing Prescot's 'System of the Universe,' very correctly, as a 'misapprehended mistaken elaborate performance, or book.'