The Twins

 

The Twins, sometimes known as The Crossing, is a castle in the Riverlands. It is the seat of House Frey, a vassal house of House Tully of Riverrun. It is located within the Riverlands. It consists of two near-identical towers and a fortified bridge over the Green Fork of the River Trident.

The Twins represents the only crossing point over the Green Fork for hundreds of miles in either direction. It is a major barrier to travelers and merchants traveling from the North to the western Riverlands. It lies directly on the main route from Winterfell to Riverrun. Moving from one castle to the other while avoiding the Twins requires a lengthy detour hundreds of miles to the south or hazardously traversing the bogs and swamps of the Neck to the north. Travelers heading south who cannot pass southwest over the Twins must pass southeast along the Kingsroad.

The Freys' rise began six hundred years before the events of the series with the building of a stone bridge over the Green Fork. It took three generations to build the Twins, but afterwards they quickly grew wealthy by charging passing travelers for the use of the Crossing. The bridge is a massive arch of smooth grey stone, wide enough for two wagons to pass abreast.