Berber Books

“Macrinus was a Moor by birth, from [Mauretania] Caesarea, and the son of most obscure parents, so that he was very appropriately likened to the ass that was led up to the palace by the spirit; in particular, one of his ears had been bored in accordance with the custom followed by most of the Moors. But his integrity threw even this drawback into the shade. As for his attitude toward law and precedent, his knowledge of them was not so accurate as his observance of them was faithful. It was thanks to this latter quality, as displayed in his advocacy of a friend's cause, that he had become known to Plautianus, whose steward he then became for a time. Later he came near perishing with his patron, but was unexpectedly saved by the intercession of Cilo, and was appointed by Severus as superintendent of traffic along the Flaminian Way. From Antoninus he first received some brief appointments as procurator, than was made prefect, and discharged the duties of this office in a most satisfactory and just manner, in so far as he was free to follow his own judgment.
Book 79 - 11”
― Cassius Dio, Roman History, Volume IX: Books 71–80