Andrea Albert Pierre Casiraghi (born 8 June 1984) is the elder son of Caroline, Princess of Hanover, and her second husband Stefano Casiraghi. He is the eldest grandchild of Rainier III, Prince of Monaco, and American actress Grace Kelly. Casiraghi is currently fourth in the line of succession to the Monegasque throne, following his twin cousins and mother.
Casiraghi was born on 8 June 1984 at the Princess Grace Hospital Centre in La Colle, Monaco, to Princess Caroline of Monaco and her husband, the Italian businessman and athlete Stefano Casiraghi.
The eldest grandchild of Rainier III, Prince of Monaco, and his wife, former American actress Grace Kelly, Casiraghi was named after his father's childhood friend, his maternal uncle Prince Albert and his maternal great-grandfather Prince Pierre, Duke of Valentinois. Casiraghi's godparents are his maternal aunt Princess Stéphanie and his paternal uncle, Marco Casiraghi. His sister Charlotte was born on 3 August 1986, and his brother Pierre on 5 September 1987.