Henry Tudor got away with it because everyone else was dead and then murdered a shitload of people. This is not how it's portrayed in the history books. I wonder why? grin
Hehe.
My favourite Henry Tudor fact is that dealing with and eventually capturing and executing Perkin Warbeck (dude who pretended to be one of the Princes in the Tower) cost Henry Tudor the equivalent of ten million pounds.
But Lambert Simnel (those names!!), the other bloke who pretended to be a Prince in the Tower, actually got pardoned by Henry and got a job working in his kitchen, which is pretty trusting of Henry!
Conn Iggulden has a cracking novel series about the Wars of the Roses and creation of the Tudors. So much better than Phillipa Gregory.