From humble beginnings growing up in a west London house so close to the railway line the window frames rattled when a train passed, the Barclay twins, Frederick and David, became an extraordinary, energetic and eccentric power couple.
They built an empire of glitzy hotels and made many millions in shipping and retail before plunging into the world of newspapers but – largely – eschewed the trappings of life in the London fast lane to live in strange isolation in a sprawling mansion on a small rocky island just off the French coast.
