Hey, I don't know if this has been mentioned before, but I think I can get an approximation of the founding of the Knights of the Cross, or at the very least the forging of Amoracchius.
"A" is a broadword, and is the only one of the Three that has not been modified, meaning it's always been a broadsword. broadswords were developed and used as early as 1000 A.D., so unless it was the progenitor of all broadswords, Amorrachius (and possibly the Knights) is no older than a millenia (+/-)