According to the Goetia, Orobas is a high prince of Hell, the fifty-fifth spirit who governs 20 legions.
Orobas appears as a horse, or a human, or a combination of them both. He can predict the future.
Orobas is a great prince, he commeth foorth like a horsse, but when he putteth on him a mans idol, he talketh of divine vertue, he giveth true answers of things present, past, and to come, and of the divinitie, and of the creation, he deceiveth none, nor suffereth anie to be tempted, he giveth dignities and prelacies, and the favour of freends and foes, and hath rule over twentie legions.
Pseudomonarchia daemonum - Johann Wier (1583)