Cesare prepares to march against Milan and forces the Venetian ambassador into a commitment to stop German troops if they should rush to Milan's aid.

Cesare trains a private army in case Louis doesn't send his promised troops; Lucrezia listens as her mother recites the rosary at Juan's tomb.

Cesare celebrates his victory in Milan by summoning Leonardo da Vinci, whom he wishes to employ as a designer of innovative new war machines.