 However, according to experts, the origin of the arms of Ferrol goes back only to the eighteenth century, and there are also several variants used over time, without having been set in accordance with the applicable legislation since the 1990s.The combination of two words that can mean either 'port – close', 'landing on pillars' or a Ferreoli Domini, "the lord of Ferreol", a veiled allusion to the town, which could have had a temple under the patronage of St. Ferreol.The existence of prehistoric human settlements in this Galician city is backed up by the abundance of burial chambers, megalithic monuments as well as Petroglyphs and other archaeological findings.