Barbara Windsor traces her maternal grandfather to the East London docks and finds that his mother was a matchgirl at the Bryant and May factory.

Robert Lindsay discovers that his paternal grandfather Jesse was severely wounded in the trenches of WWI.

Athlete Colin Jackson takes a DNA test, and travels to Jamaica to research his family history.

David Dickinson explores the circumstances of his adoption and the story of his Armenian ancestors.

Nigella Lawson's Jewish immigrant family have come a long way from poverty in Europe and the East End to the wealth of Belgravia. Her father Nigel was Margaret Thatcher's golden boy and mother Vanessa was heiress to the Lyons food dynasty.

Jeremy Irons is largely perceived as the quintessential English gentleman, but he feels a strong connection to Ireland. He has a house in Ireland, an Irish wife, Sinead Cusack, and is sure that there's Irish blood somewhere in his family.

Julia Sawalha comes from a multi-cultural family. Her mother is English but believes her side of the family are descended from French Huguenots.