Lost connections and unfamiliar histories are revealed as celebrities trace their family trees.
Judi Dench's journey through her ancestry leads her to 16th-century Denmark.
Crime writer Richard Osman learns that one of his ancestors was an amateur sleuth.
Former TOWIE star Mark Wright learns of a Spanish ancestor who survived the Inquisition.
Paul Merton traces the life of his grandfather, who is said to have been lost at sea.
Sharon uncovers the difficult circumstances of her mother鈥檚 and grandmother鈥檚 lives.
Jonnie Peacock ends up captivated by his four-times-great-grandmother.
Robert 'Judge' Rinder follows the story of his grandfather, a Holocaust survivor.
Marvin Humes looks at his Jamaican and his English heritage.
Shirley pursues a rumour that she has black ancestors.
Boy George expects to find a lot of sadness in his family tree.
Lee Mack finds out more about his great-grandfather, who was also a comedian.
Michelle Keegan uncovers some exceptional women on her family tree.
Baker Paul Hollywood finds out about his grandfather's experiences in World War II.
Silent Witness actor Liz Carr gets forensic about her family history.
Gavin and Stacey's Ruth Jones uncovers her grandfather's role in a forerunner of the NHS.
David Walliams learns of his great-grandfather鈥檚 traumatic experiences during WWI.
Ruby Wax learns about the plight of her parents, who fled the Nazis and went to America.
Actress Lisa Hammond wants to understand her grandfather's WWII experiences.
Noel Clarke visits the Caribbean to learn more about his family.
Fearne Cotton learns about her Welsh great-grandfather who worked down a coal mine at 13.
Pop star Lulu travels to Glasgow to get to the bottom of a family mystery.
Presenter Emma Willis's family history leads her down two very different paths in Ireland.
Citizen Khan star Adil Ray explores rumours of a link to African royalty.
Sports broadcaster Clare Balding uncovers an extraordinary American dynasty.
