Simplify the following text for a Grade 10 native English-speaking person.
Original: Alessandro di Mariano di Vanni Filipepi , better known as Sandro Botticelli or Il Botticello `` The Little Barrel '' ; ( c. 1445 â `` May 17 , 1510 ) was an Italian painter of the Florentine school during the Early Renaissance ( Quattrocento ) .
Simplified: Alessandro di Mariano Filipepi , better known as Sandro Botticelli ( `` little barrel '' ) ( March 1 , 1445 â `` May 17 , 1510 ) was an Italian painter . He went to the Florentine school during the Early Renaissance ( Quattrocento ) .