Now I heard somewhere that George R. R. Martin's series is loosely based on the historical happenings during the time of the War of the Roses in England, how far does this go? It's pretty obvious that the Lannister's in the series are endicative of the House of Lancaster of that period, but who is Daneras based on, and mostly what beyond that are there specific events or general characters in the series that directly parrallel the events/people of that time?
how far does this go?
It doesn't even get out of the gate.
It's best to think of literally any show you see on TV that seems to be related to the middle ages as a sort of visual Renaissance Faire. It's shiny, it's fun, and it feels historical, and that's where any relationship to the actual past stops.
GoT is like the real War of the Roses insofar as both had people who fought battles with pre-gunpowder weapons. Also, both have castles. That's it.