His eldest hope, young Rocha, at his call, Resigns his charge within the temple, wall;

Book III. Line 29.

The high priest of the sun was always one of the royal family; and in every generation after the first, was brother to the king. This office probably began with Rocha; as he was the first who was capable of receiving it, and as it was necessary, in the education of the prince, that he should be initiated in the sacred mysteries.