Here many major sea battles were fought just in front of its fortress. The Cape takes its name from a Spanish priest martyred at the beginning of the 4th century. According to legend, his remains were brought or washed ashore on Promontorium Sacrum, the Sacred Cape, as it was known in ancient times. Inside the fortress a chapel can be found, built on what is traditionally said to be the site of St. Vincent's grave. The original temple, perhaps on the site of the Forte de Beliche, was watched over by 10 ravens which never left it.
Legend has it that the raven kept constant vigil from the rigging of the ship all the way.
Because of this, the raven is still part of the insignia of both the city of Lisbon and of Cape St Vincent's local seat of administration, Vila do Bispo. Cape St Vincent lighthouse was built on the site of a 16th-century Franciscan convent in 1846. It was electrified in 1906, and is situated at the end of the 6 km road from Sagres. The two 1,000-watt lamps magnified by concentric rows of prisms throw a 10 foot tall beam 60 km out to sea making it the second most powerful lighthouse in Europe. It keeps vigil over one of the world's busiest shipping lanes.