At the age of 15

• 01-October-1868 : Chulalongkorn starts to rule in Siam.
• 28-June-1744 : Catherine the Great is received into the Russian Orthodox Church.
• 13-April-1735 : Emperor Sakuramachi accedes to the throne of Japan.
• 04-November-1677 : The future Mary II of England marries William of Orange.
• 13-June-1625 : King Charles I of England marries Henrietta Maria, Princess of France and Navarre.
• 17-May-1590 : Anne of Denmark is crowned queen of Scotland.
• 19-July-1553 : Lady Jane Grey is replaced by Mary I of England as Queen of England after having that title for just nine days.
• 18-July-1553 : The Lord Mayor of London proclaims Queen Mary as the rightful Queen; Lady Jane Grey willingly abdicates.
• 14-November-1501 : Arthur, Prince of Wales, marries the Spanish princess, Catherine of Aragon.
• 14-November-1501 : Arthur, Prince of Wales, marries the Spanish princess, Catherine of Aragon.