- For the 15th century composer from Basel, see Leonardus Achates de Basilea
In Roman mythology
(good, faithful Achates as he was called) was a close friend of Aeneas
. He accompanied him throughout his adventures, and led him to the Sibyl of Cumae
, remarkable for, and a perennial type of, fidelity.
The Royal Navy (United Kingdom) named the HMS Achates, an A class destroyer sunk during World War II, after the mythical character Achates.