TheCodeBreakers
Conde sent him the cryptogram. The young man solved it on the spot.
It revealed that the Huguenots desperately needed munitions and that, if
they were not supplied, they would have to yield. This was news indeed,
for despite the destruction of a number of houses by the Catholic
batteries, the town was continuing to resist stoutly with no sign of
surrender. Conde returned the cryptogram to the inhabitants, and on
Sunday, April 30, 1628, though its fortifications were still unbreached
and its defenses still apparently adequate for a long siege, Realmont
suddenly and unexpectedly capitulated. With this dramatic success
began the career of the man who was to become France's first full-time
cryptologist: the great Antoine Rossignol.
When word of the incident reached Cardinal Richelieu, the astute and
able Gray Eminence of France, he at once attached this useful talent to
his suite. Rossignol proved his worth almost immediately. The Catholic
annaabi.ee 
