Pierre Rainier Stefano Casiraghi is the younger son and youngest of three children of Caroline, Princess of Hanover, and her second husband, Stefano Casiraghi. His maternal grandparents were Rainier III, Prince of Monaco, and American actress Grace Kelly. Read More
The presence in New York of 16-year-old Swedish climate activist Greta Thunberg drew hundreds of young people to a rally outside United Nations headquarters. ...