Lannisport is a prominent port city located in the region of the Reach in the fictional world of Westeros, created by author George R.R. Martin. It serves as a significant trade hub, known for its bustling docks and vibrant marketplace. The city is situated near the Golden Sound, providing easy access to the sea and facilitating commerce with other regions. The city is also closely associated with the Lannister family, one of the wealthiest and most powerful houses in Westeros. Lannisport features impressive architecture, including the Lannister ancestral castle, Casterly Rock, which overlooks the city. Its strategic location and economic importance make it a key player in the political landscape of the realm.