Stefano Casiraghi was an Italian businessman and motorboat racer, born on August 8, 1960. He was known for his successful career in offshore powerboat racing, where he won several championships. Casiraghi was also recognized for his connection to the Monaco royal family through his marriage to Caroline of Monaco, the daughter of Grace Kelly. Tragically, Casiraghi's life was cut short when he died in a racing accident on September 3, 1990. His legacy continues through his three children, who are part of the Grimaldi family and are involved in various public and charitable activities.