The house where Louis IX of France was imprisoned in 1250 after the Seventh Crusade was crushed at the battle of Mansoura. Nearly 800 years later it still stands, now a small museum with the chains, coins, weapons and personal effects of the captured king and his court. The building is one of the oldest surviving domestic structures in the Delta — a plain medieval townhouse that was already old when the Crusaders arrived.
The museum is small and understaffed, but the exhibits are genuine artefacts: medieval weapons recovered from the battlefield, fragments of Crusader equipment, coins from both sides of the conflict, and documents relating to the captivity. The context provided by the main location page and the Mansoura War Memorial nearby turns a visit to this otherwise overlooked site into a compelling tour through 800 years of military history in a single city.