Unique among the Free Cities, Braavos was not a Valyrian colony, but a secret refuge from Valyrian expansion. It is a city spread over hundreds of tiny islands in a lagoon on the northwestern end of Essos, where the Narrow Sea and Shivering Sea meet. Braavos is home to the 'Iron Bank', one of the wealthiest banks in the known world. Braavos is also known for its swordsmen known as 'bravos', and its mysterious assassins, the Faceless Men. It is also famed for the Titan of Braavos, both a fortress and a statue. The ruler of Braavos is known as the Sealord and it is from the sea that the city's power and wealth flows. The hulls of Braavosi ships are painted purple and their merchant ships sail to many distant lands and bring their trade and wealth back home. Braavos has many moneylenders and the Iron Bank of Braavos lends money to foreign nations, especially The Crown, which has borrowed millions.