Giacomo is a servant who works for Leonardo and is trying to figure out who his father is, which may be Leonardo. Giacomo delivered one of Leonardo's paintings of Medusa to the Duke, who was upset by it and warned Giacomo not to tell Leonardo. Giacomo will receive an extra reward of working with Leonardo on his paintings.

1. Giacomo is a young servant he
works for Leonardo. He is a
curious person. He is currently
figuring out who his father is
but it might be Leonardo.
Leonardo sent Giacomo to bring
his painting to the Duke,
apparently it was medusa and the
Duke was upset and warned
Giacomo not to tell Leonardo
about this.
There will be an extra reward which
will be working with Leonardo on his
painting.