Recent research highlights the use of letterlocking techniques by Queen Elizabeth, Catherine de’ Medici and Mary Queen of Scots.Recent research highlights the use of letterlocking techniques by Queen Elizabeth, Catherine de’ Medici and Mary Queen of Scots.Read MoreLetters, Archives and Records, Royal Families, History (Academic Subject), Research, Electronic British Library Journal, Elizabeth I, Queen of Great Britain, Mary, Queen of Scots, Medici Family, Europe, Great Britain, France, Scotland, your-feed-science