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

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.