World · Europe · 2 hrs ago
Antoine de Massy, 29, found dead in Monaco as investigation continues
Antoine de Massy was found dead in Monaco on Sunday evening, aged 29.
He was the son of Baron Christian de Massy and Cécile Gelabale, and a cousin of Prince Albert II.
His body was found in a green space near Larvotto Boulevard, behind Villa Sauber, after a relative raised concern when he missed a family lunch.
Monaco’s prosecutor opened an investigation to establish the cause of death.
Police detained one person on Monday after reviewing surveillance footage, but the person may be a witness and their involvement has not been established.
Investigators have not ruled out an accident, the actions of another person or a failure to help someone in danger.
Prince Albert and Princess Charlene expressed their sadness and sent condolences to his family; the investigation is continuing.
Antoine de Massy, 29, was found dead in Monaco on Sunday, 25 October.
His body was found in a green space near Boulevard du Larvotto, behind Villa Sauber.
Police arrested a person on Monday after investigators used surveillance footage to identify someone near the location.
The person was placed in custody for questioning, but could be a witness and their involvement has not been established.
Monaco’s Prince Albert II and Princess Charlene expressed their sadness and sent condolences to his family and friends.
- Who
- Antoine de Massy, a 29-year-old member of Monaco’s princely family and a cousin of Prince Albert II.
- What
- He was found dead. A person was arrested and questioned as investigators seek to establish the circumstances of his death.
- When
- His body was found on Sunday, 25 October 2026. The person was arrested on Monday, 26 October.
- Where
- In a green space near Boulevard du Larvotto, behind Villa Sauber, in Monaco.
- Why
- The circumstances and cause of death are under investigation. No possibility has been ruled out.
This story does not have two clearly opposing sides.
A relative reportedly became concerned when Antoine de Massy did not attend a family lunch.
De Massy’s body was found in a green space near Boulevard du Larvotto.
Investigators used surveillance footage to identify a person near the location, who was arrested and questioned.
Prince Albert II and Princess Charlene expressed their sadness and sent condolences to the family.
- Age
- 29
- Found
- Green space near Boulevard du Larvotto, behind Villa Sauber, Monaco
- Discovery date
- Sunday, 25 October 2026
- Arrest
- One person arrested on Monday, 26 October 2026
- Family
- Son of Baron Christian de Massy and Cécile Gelabale
3 sources
Antoine de Massy, le petit cousin du prince Albert II de Monaco, retrouvé mort : le couple princier évoque sa tristesse
En deuil, Charlene et Albert de Monaco expriment leur “tristesse” : Antoine de Massy, petit-cousin du prince, nous a quittés à 29 ans
Le petit-cousin du prince Albert II, Antoine de Massy, retrouvé mort à Monaco : une personne placée en garde à vue
What people are saying
An investigation was opened to determine the causes of death.
We then had to change the procedural framework to allow us to arrest this individual, place them in custody and try to clarify the circumstances of the death.
They share the grief of his family and loved ones and extend their sincere condolences in this painful circumstance.