She was just 20 years old

Prince William and Prince HarryPrince William and Prince Harry(Image: Getty Images)

A cousin of Prince William and Prince Harry was found dead with a firearm next to her, an inquest has heard.

Rosie Roche was a granddaughter of Princess Diana’s uncle.

She was 20 years old and a university student.

She was found dead by her mum and sister with a firearm close to her.

The tragic discovery was made at the family home in Wiltshire, reports The Mirror.

She was preparing to pack 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 was working towards obtaining a degree in English Literature at Durham University. A spokeswoman said she “will be sorely missed”.