Model, actress and fashion designer Twiggy is credited with being the world’s first supermodel. Born Lesley Hornby, her life changed for ever when, aged 16, a reporter spotted her photo on the wall of a Mayfair hairdresser and ran a story describing her as the ‘face of the 60s'. Twiggy says: “It was madness. I was suddenly in the newspapers and being flown all around the world, we were a very ordinary, happy family, and I had a happy childhood. “I grew up in Neasden, which is a suburb of north-west London. We didn’t have lots of money but, you know, we had a car, we had a telly. I had my mum and dad; I had my sisters. “He was brilliant, my dad. I was devoted to him. That doesn’t mean I didn’t love and adore mum, but she was much, much more complicated. She suffered with her nerves. “My mum didn’t like talking about the past. I have a vague memory of her dad who died when I was, I think about four-ish. I know nothing about her mum. I don’t get the impression she was from a bad family or there was anything wrong with them. I think she was very close to her mum and dad. “I feel, heart and soul, a Londoner, and I’m very proud of it. My dad came from Lancashire, so it's weird my mum married him - she hated going anywhere north of Watford. “What am I going to find out? I’m off on an awfully big adventure and I’m very excited." Twiggy grew up in a close-knit family in London - but admits that her parents told her nothing at all about her family. She discovers a history of strong women – and a hint of crime. Twiggy’s episode marks the 100th episode of the Who Do You Think You Are? series.