English Wikipedia, rev 1374259363 (lead: “Pierre Rainier Stefano Casiraghi (born 5 September 1987) is the younger son and youngest of three children of Caroline, Princess of Hanover, and her second husband, Stefano Casiraghi. He is the mater”): https://en.wikipedia.org/w/index.php?title=Pierre_Casiraghi&oldid=1374259363
Pierre Casiraghi (1987) – généalogie | GOTHA Directory