Francesco Sforza, nicknamed "Il Duchetto" ("The Little Duke"; January or February 1491 - 1512) was the eldest son of Gian Galeazzo Sforza, duke of Milan, and Isabella of Naples. He was count of Pavia from 1491 to 1499. In the latter year, as the French troops conquered Milan, he was carried to France by King Louis XII. Francesco died falling from a horse at Angoulême in 1512. Wikipedia
The definitive Wikipedia entry for Francesco Sforza. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Francesco_Sforza_%28il_Duchetto%29
