Codes and Crowns

Fifty encrypted letters sent by Mary, Queen of Scots have recently been deciphered. What have we learnt?

o4ɑȝ/: cipher used between Mary, Queen of Scots and Guillaume de l’Aubéspine, Mauvissière’s replacement as ambassador, late 16th century.
Cipher used between Mary, Queen of Scots and Guillaume de l’Aubespine, Mauvissière’s replacement as ambassador, late 16th century. The National Archives.

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