Louis Robert Paul Ducruet is the oldest-and only-son of Princess Stephanie of Monaco with Daniel Ducruet. He is the nephew of Prince Albert Alexandre Louis Pierre of Monaco, the present reigning prince of Monaco, thus Mr. Ducruet is 7th in line for the throne. At his birth, he was technically 9th in line for the throne (since this was prior to the succession law change of 2002, his illegitimate cousin Jazmin was in line after her father, technically, and his uncle had not yet ascended the throne).
Due to being so far down in the line for the throne, his parents wanting a “normal” life for their children, and his university studies taking prevalence over royal duties, Louis is rarely seen performing duties on behalf of his uncle. Louis does attend the circus festival every year-often on the days that the cameras are not there, according to his mother. Louis attended his uncle’s 2005 Enthronement ceremony, and July 2011 wedding to his new aunt, Princess Charlene, appearing on the balcony after the civil service, arriving with his mother, sisters, aunt and younger cousin at the religious service, and attending the JM Jarre concert after the civil service, and the Eagles Concert prior to the festivities. More recently, he accompanied his mother to the Golden Foot Awards in October 2012.
Louis speaks fluent French, English and Italian, and according to his Facebook at one point, he even claimed to know some Japanese!
Happy 20th Birthday, LouLou!