Donna Ida and Robert Walton at Langdon Court in Devon (David Venni) When Donna Ida Thornton celebrated her half-century last year, it marked a turning point in her life. "Everything leading up to this was my training ground, and now I'm executing everything I learnt in the first 50 years," the Australian fashion designer tells HELLO! as she and her husband Robert Walton open the doors to their magnificent 16th-century manor house in Devon.