Historian Dan Snow's greatest regret is how he treated his little sister Beck Snow in childhood, though the duo (despite being separated by the Atlantic) are now as thick as thieves. In this episode of Relatively, Dan and Beck recount the summer they learned how to wow the dance floor at teenage parties and the soap-opera-like moment they found out about their father Peter Snow's love child Matthieu. The siblings talk about teasing, eccentricity and fame, privilege – and the pride they feel for each other's successes.    See acast.com/privacy for privacy and opt-out information.