Francesco was the alias used by one of Rosanna Calvierri's male children who escaped the silence that fell over Saturnyne.
Biography
Francesco was the eldest of Rosanna's male children. He wore A perception filter and helped his mother capture girls to be transformed into mates for his brothers. After Amy Pond escaped from his mother's "school", he chased her. Rory Williams insulted his mother, distracting him, and tried to fight him. Returning to his true form, Francesco was killed when when Amy reflected light from the sun onto him using a mirror, saving Rory in the process. (DW: The Vampires of Venice)
Powers and abilites
Francesco had a very neet sword that he was very skilled with. To make proof he was good with a sword he nearly killed Rory. He was a very good swimmer. He was quite strong with his sword knocking the brush out of Rorys hand! And cutting it in half with one strike.