03-04-2020, 10:39 AM
The Doge of Venice sent Giovanni Fontana to Brescia to deliver a message to the condottiere Francesco Carmagnola. I wondered before whether this was written in cipher as was common with this kind of diplomatic communication. I looked into where Fontana had become familiar with ciphers. If he was sent on a diplomatic mission like this then that might explain where he learnt about ciphers.
More to come...

