I had no idea that Tudor London was so multi-ethnic until I watched the TV programme Wolf Hall. There was even, apparently, an African member of the Privy Council, advising Henry VIII. This colourblind casting is admirable in many ways. But. But when sisters obviously have different fathers then it can become a distraction. What’s the story there? Has Lord Whatever not noticed his second daughter has a strikingly different skintone from himself and his wife?