January 22, 565 Eutychius was deposed as Patriarch of Constantinople by John Scholasticus. 871 Battle at Basing: Danish invasion army vanquished Ethelred of Wessex. 1371 King Robert II Stuart of Scotland was crowned. 1506 The first contingent of 150 Swiss Guards arrived at the Vatican. 1521 Charles V, Holy Roman Emperor, opened the Diet of Worms. 1552 Sir Edward Seymour, uncle to King Edward VI of England, was executed.