Castell de la Trinitat

Along with the Ciutadella de Roses, it provided defenses for the town of Roses. The castle was completed in 1551 It was defended for twelve days by Royal Navy sailors and marines under the command of Captain Thomas, Lord Cochrane, supported by Catalan militia and regulars in 1808 and the damage inflicted by the besieging French and Italian artillery was compounded by an immense explosion of gunpowder barrels from Cochrane's frigate HMS Imperieuse, laid by him to deny the investing French control of the sea approaches to the Bay of Rosas. It was built in the shape of a five-pointed star for defence purposes. The construction is about 18–20 metres high, with thick walls, and designed to house a garrison of about 350 men.