Who was Rosie Roche: the dog-loving Durham student and cousin of Prince William and Harry, who has died at 20

Rosie’s father, Hugh, is an Eton graduate and currently runs an audiovisual company called Atlantis AV Solutions, which he founded in 2002. His company equips residential properties with home cinemas, lighting and sound systems. Atlantis AV Solutions describes itself as “one of the most trusted, knowledgeable, and experienced technology companies in the UK.”