# Death of Antoine de Massy in Monaco

> Developing situation record from CLSTR: https://clstr.news/situations/death-of-antoine-de-massy-in-monaco
> Updated: 2026-11-06T08:16:15.000Z. Sources: 98. Developments: 4.

Antoine de Massy, a 29-year-old member of the extended princely family of Monaco and second cousin to Prince Albert II, was found dead in a green space along Boulevard du Larvotto on October 25. He was the son of Baron Christian de Massy and Cécile Gelabale. His body was discovered after he failed to attend a scheduled family meal.

Autopsy results indicated the probable cause of death was a 13-meter fall from a boulevard into a courtyard or park area. A 42-year-old Ukrainian national, who was seen in the company of de Massy after the latter left a nightclub, has been placed in pre-trial detention. The suspect faces charges of involuntary manslaughter and failure to assist a person in danger, though he denies the allegations.

In a recent interview with Corriere della Sera, the victim’s father, Baron Christian de Massy, rejected theories that the death was an accident or a suicide. He stated, “It was neither an accident nor suicide, nothing of the sort, but I cannot talk about it now because the investigation is ongoing.”

Antoine de Massy was a former aspiring professional tennis player who had lived in Florida to pursue training and studies. A private funeral service was held on November 4 at the Monaco Cathedral. Mourners included Prince Albert II, Princess Charlene, Princess Caroline of Hannover, and Princess Stéphanie. Alexandre Grimaldi, the 23-year-old son of Prince Albert II, served as a pallbearer and delivered a eulogy, describing de Massy as his “big brother.”

## Timeline

### 2026-11-06: Monaco holds funeral for Antoine de Massy

Monaco held a private funeral for Antoine de Massy, 29, at the Notre-Dame-Immaculée Cathedral, attended by members of the Princely Family.

2 sources. https://clstr.news/cluster/monaco-holds-funeral-for-antoine-de-massy

### 2026-11-01: Monaco investigation continues into death of Antoine de Massy

Monaco authorities are investigating the death of Antoine de Massy, a relative of Prince Albert II. A Ukrainian national has been charged following the 29-year-old's fatal fall in the Larvotto district.

6 sources. https://clstr.news/cluster/antoine-de-massy-member-of-monaco-royal-family-found-dead

### 2026-10-28: Monaco authorities charge man after death of Prince Albert II relative

A 42-year-old man has been charged with involuntary manslaughter and failure to assist a person in danger following the death of Antoine de Massy, a relative of Monaco's Prince Albert II.

24 sources. https://clstr.news/cluster/monaco-investigation-launched-into-death-of-antoine-de-massy

### 2026-10-26: Antoine de Massy, relative of Monaco's Prince Albert II, found dead

Antoine de Massy, a 29-year-old relative of Prince Albert II, was found dead in Monaco. A man has been detained following a review of surveillance footage.

71 sources. https://clstr.news/cluster/antoine-de-massy-cousin-of-prince-albert-ii-found-dead-in-monaco

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Cite as: Death of Antoine de Massy in Monaco. CLSTR, https://clstr.news/situations/death-of-antoine-de-massy-in-monaco