Prince William and Prince Harry’s cousin’s explanation for dying has been revealed.

Rosie Roche died of a “traumatic head harm,” the Wiltshire and Swindon coroner confirmed to Web page Six on Tuesday.

No additional particulars have been divulged.

The 20-year-old’s physique was discovered at residence by her mom and sister on July 14, with a gun close by.

Roche had been packing for a visit with associates previous to her passing.

The coroner claimed police have deemed Roche’s dying “non-suspicious” with none third-party involvement.

Reps didn’t instantly return Web page Six’s request for remark.

Roche’s obituary — which referred to the late Durham College scholar as a “darling daughter” and “unimaginable sister” — was printed by the Yorkshire Submit on Saturday.

She was considered one of Edmund “Hugh” Burke Roche and Pippa Lengthy’s three kids, with the couple additionally sharing son Archie and daughter Agatha.

Hugh’s father, notably, was Edmund Roche, Princess Diana’s uncle.

Rosie’s school’s principal, Wendy Powers, launched a press release about how “extraordinarily saddened” college students and employees members are by her dying.

“Rosie had settled into the college and school fantastically and had numerous associates,” Powers wrote of the “sorely missed” English literature main.

“She was liked for her creativity, vitality, her love of books, poetry and journey amongst many different skills,” she concluded.

A personal household funeral and a memorial service for Rosie can be held at a later date, in line with her obituary.