Aseni, ausoni and eseni were names of old romanians known as Getae and Dacians(see Carlo Troya, Storia d'Italia del medio-Evo - Napoli - Stamperia reale - 1830)

Also: Otrokocis, Origines hungarice, 1693 in chapter IV

Asen is a wallachian name and may be the origin of the name of king Asen, known with wallachian-bulgarian origin

Troya and Otrokocis presint old stories based on documents.