Watch Who Do You Think You Are? Season 8 Episode 5 Online

Actor Rachel Griffiths's journey into the past takes her back to the re-emergence of Judaism in 17th century England. She discovered that her eight-time grandfather was one of the best known Jewish capitalists in London - associated with the Royal Exchange, the Bank of England, and the British East India Company. But his business interests extended further afield, and Rachel learns he was engaged in the international slave trade.