Historical fact or fiction

Watched episodes 5 and 6 of the Tudors tonight. Henry VIII is getting power mad and girl crazy. The writers are having a field day with history - instead of two sisters Henry now has one and this one is called Margaret but seems to do most of what Mary did. Confusing! Still good fun to watch and Jonathan Rhys Meyers is good as the quixotic Henry but Henry Cavill is better as Charles Brandon. What a superman ...