Lannisport

Lannisport is a walled city in the westerlands located less than a mile south of Casterly Rock, the seat of House Lannister. Lannisport is located along the coast of the Sunset Sea where the river road, the gold road, and the ocean road meet. It is one of the major ports of the Seven Kingdoms and is the largest settlement in the westerlands. Lannisport is smaller than Oldtown, but larger than Gulltown or White Harbor

The Lannisters anchor their fleet in its harbor. The city is renowned for its goldwork. Lannisport is policed by the well-trained City Watch. Besides the Lannisters of Lannisport, other distant kin living in the city are Lannys, Lannetts, and Lantells, many of whom are yellow of hair.

A lesser branch of House Lannister of Casterly Rock developed a village a mile from Casterly Rock into first a town and then a city, as the fertile vicinity has a natural harbor with abundant fish. While the Lannisters of Lannisport fortified the city, the Lannisters of Casterly Rock became the Kings of the Rock. By the time of the Saxon invasion the only city in Westeral larger than Lannisport was Oldtown.

Due to the city's proximity to the Iron Islands, Lannisport has often been a target for their attacks, being burned at least three times and raided two dozen times over the centuries.