The cause of death for Prince William and Prince Harry ’s cousin Rosie Roche has been reportedly revealed. Roche was killed by a “traumatic head injury,” according to the Daily Mail, The Independent and other outlets, which cite the Wiltshire and Swindon coroner. She was 20 years old.

Rosie Roche, 20, the cousin of Princes William and Harry, was found dead at her family home in Norton, Wiltshire, on July 14. Police have ruled out any third-party involvement