 A number of French/Norman placenames remain, from the period when the island was in the jurisdiction of the Duchy of Normandy.The Herm Island map, published by the tenant of Herm, states that main place names, including the island name itself, have unclear origins, although there is an unofficial Anglicisation of names; for example, "La Pointe du gentilhomme" was changed to "Alderney Point".The primary present language on Herm is English.