House Bracken of Stone Hedge is an ancient Riverlands house and a perpetual rival of their neighbours the Blackwoods. They were kings on the same lands once, when the rivers had a dozen kings between them, and they bent the knee to the Andals when the Blackwoods did not, a difference of choice the two houses have been arguing about for several thousand years.
The Brackens breed strong horses on their grasslands and strong-willed daughters in their hall; Lord Jonos Bracken is plainspoken, hot-tempered, and quick to ride for his liege lord, particularly if the liege's enemy happens to share a border with him.