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. Dates given are those of birth and death; for Princes of Orange (shown in bold), the intermediate date is the date of accession to the Princedom. By virtue of his marriage to Mary II of England, Prince William III, himself a grandson of Charles I of England, became King of England 1689–1702 (jointly with Mary II until her death in 1694) following the overthrow of his uncle and father-in-law James II of England in the Glorious Revolution. The family lineage is of note as John William Friso is the most recent common ancestor of all the current monarchs of Europe.
Pinniped Pinnipeds ( ) (from Latin "pinna" "fin" and "pes, pedis" "foot"), commonly known as seals, are a widely distributed and diverse clade of carnivorous, fin-footed, semiaquatic marine mammals. They comprise the extant families Odobenidae (whose only living member is the walrus), Otariidae (the eared seals: sea lions and fur seals), and Phocidae (the earless seals, or true seals). There are 33 extant species of pinnipeds, and more than 50 extinct species have been described from fossils. While seals were historically thought to have descended from two ancestral lines, molecular evidence supports them as a monophyletic lineage (descended from one ancestral line). Pinnipeds belong to the order Carnivora and their closest living relatives are bears and musteloids (weasels, raccoons, skunks, and red pandas), having diverged about 50 million years ago.