Rosie Roche, the 20-year-old cousin of Prince William and Prince Harry, has sadly passed away.

She was found dead on July 14 in her Wiltshire home, and was killed by a “traumatic head injury,” according to The Independent, citing the Wiltshire and Swindon coroner.

Her mother and sister reportedly found her deceased in their home after she began packing for a vacation with friends, and a firearm was allegedly found close by inside the property.

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An investigation was opened by the Wiltshire and Swindon coroner.

Coroner Grant Davies said that police “have deemed the death as non-suspicious and there was no third-party involvement,” per The Sun.

Wiltshire police also noted that “there are no suspicious circumstances” involved in her passing, in a statement to The Independent, adding that their “thoughts are with her family.”

She was a student at Durham University where she studied English literature.

As for her royal connection, she was the granddaughter of Princess Diana‘s uncle, Edmund Roche, 5th Baron Fermoy.

A spokeswoman said the royal family’s cousin “will be sorely missed,” via The Sun.

In an obituary published by the Yorkshire Post, family members remembered her as a “darling” daughter, sister and granddaughter.”

“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,” the obituary stated, adding that “a memorial service will be held at a later date.”

Our thoughts are with Rosie Roche‘s loved ones at this incredibly difficult time. We have sadly lost many notable people and celebrities in 2025.