Simplify the following text for a Grade 11 native English-speaking person.
Original: His real name was Pietro Francesco Caletti-Bruni , but he is better known by that of Cavalli , the name of his patron Federico Cavalli , a Venetian nobleman .
Simplified: His real name was Pietro Francesco Caletti-Bruni , but he is better known as Cavalli , which was the name of his patron , a Venetian nobleman .