Strabo, Geography

But his son succeeded to the priesthood; and then later, Lycomedes, to whom was assigned an additional territory¹ of four hundred schoeni; but now that he has been deposed, the office is held by Dyteutus, son of Adiatorix, who is thought to have obtained the honor from Caesar Augustus because of his excellent qualities; for Caesar, after leading Adiatorix in triumph together with his wife and children, resolved to put him to death together with the eldest of his sons (for Dyteutus was the eldest), but when the second of the brothers told the soldiers who were leading them away to execution that he was the eldest, there was a contest between the two for a long time, until the parents persuaded Dyteutus to yield the victory to the younger, for he, they said, being more advanced in age, would be a more suitable guardian for his mother and for the remaining brother. And thus, they say, the younger was put to death with his father, whereas the elder was saved and obtained the honor of the priesthood. For learning about this, as it seems, after the men had already been put to death, Caesar was grieved, and he regarded the survivors as worthy of his favor and care, giving them the honor in question.