House Rosby

House Rosby is a vassal house sworn to House Baratheon of King's Landing. Their seat is the eponymous town of Rosby, located in the Crownlands, north of King's Landing. It holds fealty directly to the Iron Throne.

The only known member of the house is Lord Gyles Rosby, an ever present figure in the court at the Red Keep.

In the books
In the books, House Rosby was one of the firsts to kneel to Aegon the Conqueror. Rosbys are not known for their robustness, tending to be sickly persons. Besides Lord Gyles, the only other known Rosby is Bethany Rosby, the deceased seventh wife of Lord Walder Frey and mother to five Freys including Olyvar and Roslin Frey.