Emperor Charles V's secret code cracked after five centuries
A team of researchers has cracked a five century-old code which reveals a rumoured French plot to kill the Holy Roman Emperor and King of Spain Charles V. Charles was one of the most powerful men of the 16th century, presiding over a vast empire that took in much of western Europe and the Americas during a reign of more than 40 years.. So much so that one nugget of information revealed was the rumour of an assassination plot against Charles V that was said to have been brewing in France, Desenclos said.