Rosie Roche, the granddaughter of Princess Diana’s uncle, has been found dead at the family home, just one year after Thomas Kingston died in similar circumstances

Rosie Roche, who was found dead aged 20(Image: Facebook)

Prince Harry and Prince William are mourning the loss of their cousin who was found dead earlier this month.

Rosie Roche – granddaughter of Princess Diana’s uncle – was discovered by her mum and sister on July 14 – with a firearm found near to her at the family home in Wiltshire, where the 20-year-old had been packing for a trip away with friends.

During an inquest hearing at Wiltshire and Swindon coroner’s court, area coroner Grant Davies said police “have deemed the death as non-suspicious and there was no third-party involvement”.

Rosie who was studying English Literature at Durham University, was reportedly preparing for a getaway with friends when her mother and sister made the heartbreaking find.

 Lady Gabriella Windsor and Thomas Kingston married in May 2019(Image: In Pictures via Getty Images)

She was the daughter of Edmund (Hugh) Burke Roche and Pippa Long, who are mourning the devastating loss. The family, who have strong ties to the British aristocracy, have described her an “incredible” sister to Archie and Agatha.

An obituary placed in the Yorkshire Post by the family reads: ” Roche, Rosie Jeanne Burke Died on Monday 14th July 2025. Darling daughter of Hugh and Pippa, incredible sister to Archie and Agatha, Granddaughter to Derek and Rae Long. Private family funeral. A memorial service will be held at a later date.”

She was working towards obtaining a degree in English Literature during the time of her death. A spokeswoman said she “will be sorely missed”. The inquest has been adjourned until October 25.

Rosie was the granddaughter of the 5th Baron Fermoy, Edmund Roche, whose sister Frances was the mother of Princess Diana.

Rosie is tragically the second relative William and Harry have lost in the last year.

 Lady Gabriella Windsor and Thomas Kingston married in May 2019(Image: Getty Images)

Thomas Kingston, who married Harry and William’s cousin Lady Gabriella Windsor in 2019, died in February last year aged just 45 with a firearm next to him.

The financier suffered a “traumatic head wound”, and a gun was found near to his body in an outbuilding at his parents home in the Cotswolds, an inquest opening at Gloucestershire Coroners Court heard. Police said they were satisfied the death was not suspicious.

Tributes poured in for the 45-year-old, with close family describing him as “an exceptional man who lit up the lives of all who knew him”.

At an inquest into his death, his distraught father, William Martin Kingston, heartbreakingly described through tears the moment he found his son lying dead in the locked bathroom of a detached annexe.

Lady Gabriella described how in his final weeks her husband had “seemed normal”, apart from early in the day after previously taking zopiclone, which she said made him seem “almost hungover”. In her statement, she described their marriage as “deeply loving and trusting” and said he had never expressed any suicidal thoughts to her or others.

In a statement read out by Katy Skerrett, senior coroner for Gloucestershire, Lady Gabriella said her husband’s decision to take his own life was likely the “result of a sudden impulse.”

She said she believed his death was “likely provoked” by an adverse reaction to the medication he had begun, and subsequently stopped taking, in the weeks leading up to his death.

Mr Kingston married Lady Gabriella Kingston on May 18, 2019, at St George’s Chapel, Windsor Castle. They got engaged the previous year on the Isle of Sark, part of the Channel Islands.