In Greek mythology, Ilus (/ˈiːloʊs/; Ancient Greek: Ἶλος Ilos) was the founder of the city called Ilios or Ilion (Latinized as Ilium) to which he gave his name.[1] When the latter became the chief city of the Trojan people it was also often called Troy, the name by which it is best known today. In some accounts, Ilus was described to have a plume of horsehair.[2]