Full name: Pierre Rainier Stefano
Last name: Casiraghi
Born: Centre Hospitalier Princesse Grace, Monte Carlo, Monaco, September 5th, 1987
Parents: Stefano Casiraghi (1960-1990) and 1983, Caroline Princess of Monaco (1957)
Stepfather: Ernst August Prince of Hanover (1954)
Brother: Andrea (1984)
Sister: Charlotte (1986)
Half-sister: Alexandra (1999)
Step-brothers: Ernst August (1983) and Christian (1985)
Hobbies: Football, going out.
Further information about his family: Links: Monaco.