They later formed the Docleatae .
Illyrii Proprie Dicti were the Illyrians proper , so called by Pliny ( 23 -- 79 AD ) in his Natural History .
Illyrians later formed the Docleatae .
Illyrii Proprie Dicti were the Illyrians proper , so called by Pliny ( 23 -- 79 AD ) in his Natural History .