House Frey

House Frey is a noble house of Westeros, although not one of the Great Houses. It is a vassal of House Tully of the Riverlands and holds its fealty to the Lord of Riverrun. Its current ruler is Lord Walder Frey.

In the books
In the Song of Ice and Fire novels, House Frey controls the Twins, two castles that hold the Crossing, the only bridge over the Green Fork of the Trident for hundreds of miles in either direction. House Frey is the northern-most house of the Riverlands, not far south of the loose border with the North, and a history of enmity with House Reed, who control the marshes to the north of the Twins.

The symbol of House Frey is two blue towers linked by a bridge. Their motto is not known.