. . . . . . "Ivan VI of Russia" . . . "Ivan VI" . . . . . . "heir to Anna" . "Ivan VI" . . . . . "1740" . . . . . . . . "Ivan" . . . . . . . . . "Ivan VI, Emperor of Russia" . "Grand Duke Ivan Antonovich" . . "Anna Leopoldovna" . . "Tsar Ivan VI" . . . "Ivan VI of Russia" . . . "1740" . . "Ivan Antonovich" . . . "Ioann Antonovich" . . . . "Prince Ivan" . . . . . . . . . . . . . . . "John Antonovich" . "Emperor Ivan VI" . . . "1741" . . "Ivan's" . "Ivan VI of Russia" .