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History Illustration, Scottish Royalty, pic: 1570, Mary Stuart, Mary Queen of Scots, (1542-1587), Leading a tragic life Mary Queen of Scots was executed in 1587 on the orders of Queen Elizabeth I as she was a threat to the crown with her Roman Catholic beliefs (Photo by Popperfoto via Getty Images/Getty Images)

History Illustration, Scottish Royalty, pic: 1570, Mary Stuart, Mary Queen of Scots, (1542-1587), Leading a tragic life Mary Queen of Scots was executed in 1587 on the orders of Queen Elizabeth I as she was a threat to the crown with her Roman Catholic beliefs  (Photo by Popperfoto via Getty Images/Getty Images)