India, July 22 -- Rosie Roche, the 20-year-old cousin, of Prince William and Harry, was found dead with a firearm near her, an inquest heard, as per The Sun.

While the inquest was yesterday, Rosie was found dead at her family home on July 14.

She is the granddaughter of Princess Diana's uncle. Roche was found by her mother and sister, after she had been packing to go away with her friends. A firearm was also discovered close to her property in Norton, near Malmesbury, Wilts.

An inquest into Roche's death was opened at the Wiltshire and Swindon coroner's court. The matter has been adjourned till October 25.

Authorities have 'deemed the death non-suspicious' and don't feel there is any 'third party involvement,' area coroner Grant Davie...