- Michael Ducruet (1992)
- Louis Ducruet (1992)
- Camille Gottlieb (1998)
- Baby Sister Ducruet (c. 2010-2011?)
She had a very interesting and active childhood. She did gymnastics, diving, toured with the circus and performed with elephants, and skipped a year in school.
She is currently 10th in line for the Monégasque throne, after an aunt (Caroline), 6 cousins (Prince Jacques, Princess Gabriella, Andrea, Pierre, Charlotte, Princess Alexandra), her cousin Pierre's son, Stefano, her mother and brother. She wore braces in 2004. In July 2005, Pauline had a serious accident while playing on a trampoline, where she fell on her head. It turns out that she was not seriously injured; only suffering a dislocated shoulder.Like her siblings, she is active in social networking sites like Facebook, Instagram and Twitter (DO NOT ask me for her links...the answer is no.). She speaks fluent French, Lang Monégasque,Italian & English.
Pauline was mostly educated in Monaco, however spent some of her education travelling. During her elementary years, she spent a brief time being educated in France, Switzerland and home schooled due to the family's traveling with the circus. Upon return to Monaco, she went back into their state school system, attending local schools. Pauline graduated from Lycee Prince Albert Ier receiving the French L Series Baccalaureate, receiving her results just after her uncle’s wedding in July 2011. After graduation, she spent a year studying a 4th language at a school in Monaco and focusing on her newly appointed position as President of the Jury of the NEW GENERATION Compétition de Cirque pour de Jeunes Artistes with the International Circus Festival, which made its debut in 2012. In 2012, she made the move to Paris, where she spent three years studying at a fashion school. In 2015, she spent several months interning with US Vogue. She briefly returned to Monaco, before moving to the US again, this time to enter another fashion school, Parsons School of Design, associated with The New School.
In her younger teen years, she spent several years representing Monaco in gymnastics and diving. In 2009, she represented Monaco at the European Junior Swimming Championships in Helsinki, Finland where she placed 19th and 22nd.In 2010 she represented Monaco at the first ever Youth Olympic Games in Singapore, where she participated in diving. At that competition, Pauline made to the finals in 9th position, and ended up 12th out of 13 divers over all (12 girls made it to the finals). At the 18th FINA Junior Diving World Championships in Tucson, Arizona, USA in 2011, she placed 21st and 29th.On 5 November 2010, Pauline was nominated as "Sportsperson of the year" for the 2009-2010 season. She did not receive the honor, however, just for being nominated, she received a gold trophy. Pauline also participated in the World Junior Diving Championships in Aachen, Germany.