Baltasar de Silva

Baltasar de Silva was Cesare Borgia's master spy, disguising himself as a barber. At one point, he partnered with Fiora Cavazza to investigate the Assassins. Though he failed to tail or catch his prey, he was able to observe their technique, clothing, and hidden blade, and took notes eagerly. This research resulted in him creating the Templar assassin, Il Lupo.

Later, when Fiora turned on Cesare and allied with the Assassins, he was able to outwit his hunters using a variety of traps. However, he was intrigued by Fiora's decision and offered to make a deal with her. The "deal" turned out to be a trap that almost resulted in Fiora's death, but Francesco Vecellio and his fellow Assassins came to her aid, and killed Baltasar and his men with arrows.