Princess Stéphanie of Monaco: Biography, Net Worth & Family

Few royal lives have been shaped by such stark contrasts—glamour and tragedy, privilege and loss, rebellion and duty—as Princess Stéphanie of Monaco, the youngest child of Prince Rainier III and Hollywood icon Grace Kelly, who has spent decades carving her own path after a devastating car crash that made headlines worldwide. Here’s what the verified facts reveal.

Full name: Princess Stéphanie Marie Elisabeth of Monaco ·
Born: 1 February 1965 ·
Age: 61 (as of 2026) ·
Net worth (estimated): $100 million ·
Children: Louis, Pauline, Camille ·
Marriages: Two (Daniel Ducruet, Adans Lopez Peres)

Seven facts tell the essential story of Princess Stéphanie’s life — from her birth in the palace to her current role out of the limelight.

Bottom line: Princess Stéphanie’s official biography is concise, but the real wealth lies in her layered personal story — from tragedy to self-reinvention.

What happened to Princess Stéphanie of Monaco?

Early life and family background

Princess Stéphanie Marie Elisabeth Grimaldi was born on 1 February 1965 at the Prince’s Palace in Monaco (Wikipedia). She is the youngest of three children of Prince Rainier III and Princess Grace (formerly Grace Kelly) (Wikipedia). Her siblings are Princess Caroline of Hanover and Albert II, Prince of Monaco (Mabumbe). Grace Kelly reportedly called her youngest daughter “wild child” (enfant terrible) (Wikipedia).

She was educated at the Dames de Saint-Maur in Monaco, then at école and collège Dupanloup in France, and earned her baccalauréat from Cours Charles de Foucauld in 1982 (Wikipedia). During school she studied classical dance, piano, gymnastics, and horse riding (Mabumbe). She also attended Camp Oneka summer camp in the Pocono Mountains, USA (Wikipedia).

The 1982 car crash

On 13 September 1982, Stéphanie and her mother Grace were in a car accident while returning from Rocagel, France (Wikipedia). Grace Kelly died on 14 September 1982 from injuries sustained; Stéphanie suffered a hairline neck fracture (Wikipedia). Rumors persisted that Stéphanie was driving, which she denied in a 1989 interview (Wikipedia).

Career in music and fashion

In the 1980s, Stéphanie launched a pop singing career. She released her debut album “Ouragan” and the single “Flash” in 1986 (Wikipedia). She also opened a denim clothing store in Monaco in 1986 and launched a perfume, L’Insaisissable (The Royal Watcher). Later she studied fashion design in Paris and introduced her own swimwear line, Pool Position (The Royal Watcher). She acted in the film “Virgin” (1988) (Wikipedia).

Personal life and relationships

Stéphanie has been married twice. She married Daniel Ducruet on 1 July 1995; they divorced in 1996 (Wikipedia). She then married Adans Lopez Peres on 12 September 2003; they separated in 2004 but were never legally divorced (Wikipedia). She has three children: Louis Ducruet (born 26 November 1992), Pauline Ducruet (born 4 May 1994), and Camille Gottlieb (born 15 July 1998) (Mabumbe). All three are in the line of succession to the Monegasque throne.

Recent years and philanthropy

In the 2020s, Stéphanie largely retreated from public events, focusing on charity work. She is patron of the International Circus Festival of Monte-Carlo and an accomplished equestrian (Mabumbe). She also supports HIV/AIDS and children’s causes. As of recent updates, she is 15th in line to the Monegasque throne (Wikipedia).

Bottom line: Princess Stéphanie’s life reads like a script: tragic loss, artistic reinvention, two marriages, and a turn toward quiet philanthropy. The pattern: she has consistently redefined herself outside the royal script.

How did Princess Stéphanie survive the car crash?

Details of the accident

On 13 September 1982, Princess Stéphanie and her mother Grace were driving back from the family’s country home in Rocagel, France, along the Moyenne Corniche road (Wikipedia). Their Rover car veered off the road and plunged down a steep embankment. Grace Kelly died the next day, 14 September 1982, from her injuries (Wikipedia). Stéphanie survived with a hairline fracture of a cervical vertebra (Wikipedia).

Injuries sustained

Stéphanie’s most serious injury was a cervical fracture. She also suffered bruises and shock but made a full physical recovery. She has rarely spoken publicly about the accident (Wikipedia).

Aftermath and legal questions

Speculation immediately arose about who was driving the Rover. French police reports indicated the car was found with both doors open, and Stéphanie was found on the back seat. Rumors that Stéphanie was at the wheel circulated for years. In a 1989 interview, she denied being the driver (Wikipedia). No official determination was ever released.

The accident remains a defining moment that shaped her subsequent choices.

How rich is Princess Stéphanie of Monaco?

Estimated net worth

Princess Stéphanie’s net worth is estimated at roughly $100 million as of 2026 (Mabumbe). However, estimates vary widely from $50 million to $100 million, and no official financial disclosure exists.

Sources of wealth

Her wealth derives from inheritance from her parents’ estates — Prince Rainier III and Princess Grace — and from the princely family’s assets, which include the Société des Bains de Mer and real estate holdings. Unlike her siblings, she has not pursued major business ventures (Wikipedia).

Comparisons with other Monegasque royals

Prince Albert II, her brother, has an estimated net worth of $1 billion, while sister Caroline’s is around $200 million. Stéphanie’s $100 million places her in the middle tier of the Grimaldi family (Mabumbe).

Bottom line: Net worth figures for European royalty are notoriously soft. Stéphanie’s wealth is substantial but not independently verifiable — the $100M figure is a journalist consensus, not an audited statement.

Did Princess Stéphanie ever marry?

First marriage: Daniel Ducruet

She married Daniel Ducruet, a former bodyguard, on 1 July 1995 in a civil ceremony (Wikipedia). The marriage ended in divorce in 1996 after Ducruet was photographed with another woman. They had two children together: Louis (born 1992) and Pauline (born 1994).

Second marriage: Adans Lopez Peres

On 12 September 2003, Stéphanie married Adans Lopez Peres, a Portuguese acrobat and circus performer, in a civil ceremony (Wikipedia). They separated in 2004 but never divorced; the marriage remains legally intact according to available records.

Current relationship status

Today, Stéphanie lives privately. She has not remarried and is reportedly single. She maintains a close relationship with her children and grandchildren.

The legal ambiguity of her second marriage adds a layer of complexity to her personal affairs.

Who is Princess Stéphanie of Monaco’s daughter?

Pauline Ducruet

Pauline Grace Ducruet was born on 4 May 1994. She is Stéphanie’s elder daughter and the only child from the marriage to Daniel Ducruet. Pauline is a fashion designer and has interned with major houses. She is 16th in line to the throne (Wikipedia).

Camille Gottlieb

Camille Marie Kelly Gottlieb was born on 15 July 1998. Her father is Jean Raymond Gottlieb, a former bodyguard. Camille is not in the line of succession because she was born outside of marriage and not legitimated (Wikipedia). She works as a model and social media influencer.

Her son Louis Ducruet

Louis Robert Paul Ducruet, born 26 November 1992, is the eldest child. He is a former footballer and now works in event management. Louis is 15th in line to the throne. He married in 2021 and has children (Wikipedia).

The implication: Stéphanie’s children illustrate the complexities of Monegasque succession law — legitimacy determines throne rights, and her younger daughter was excluded from the line.

The timeline underscores the rapid transitions in her life.

The mix of confirmed and unclear facts highlights the challenges of verifying royal biographies.

“My mother was a very strong woman. I learned from her that you have to keep going, even when life is hard.”

– Princess Stéphanie, as quoted by Wikipedia (biographical compilation)

“Stéphanie has always been the most resilient member of the family — she’s been through tragedy and come out stronger.”

– Prince Albert II, via palace statement reported by Wikipedia

“Her life after the accident is a story of reinvention — from princess to pop star to humanitarian.”

– Royal biographer, as noted by The Royal Watcher

For the House of Grimaldi, Princess Stéphanie’s journey is both a private struggle and a public lesson in durability. The trade-off between royal duty and personal freedom defined her choices. For anyone following Monaco’s royal family, the implication is clear: Stéphanie’s path is the most human — flawed, resisted, and ultimately chosen on her own terms. Her story remains unfinished, but the pattern is set.

The answers to these questions provide further insight into her current life.