[Spoilers Main] Discussion: Which house (other that House Targaryen) has been the most influential in Westeros over the years?
House Targaryen had arguably been the most influential in Westeros for centuries prior to Robert's Rebellion. But them aside, which other house has also played a huge role in the shaping of Westeros? And why?
House Stark. They're one of the oldest houses by thousands of years and ruled the north for most of that. It was a Stark after all that started the events leading to the events of the books.