Prosperetti was born in
Perugia on 7 December 1946. In 1971 he obtained a degree in Jurisprudence under
Giuseppe Guarino. He worked as a professor of labour law between 1985 and 1994 at the
University of Cassino and Southern Lazio. Since 1994 he has been a professor of labour law at the
University of Rome Tor Vergata. Properetti was the candidate of centrist politicians, he obtained 585 votes in favor. He was sworn in five days after his election. ==References==