Complex sentence: Priscilla Rattazzi was born in Rome in 1956, the youngest child of Susanna Agnelli and Urbano dei conti Rattazzi and the niece of Gianni Agnelli, who was chairman of Fiat.
Split into simpler sentences: Priscilla Rattazzi was born in Rome in 1956, the youngest child of Susanna Agnelli and Urbano dei conti Rattazzi. She is the niece of Gianni Agnelli, who was chairman of Fiat.