The demon Räum appears in the grimoires Book of Incantations, The Discoverie of Witchcraft, Pseudomonarchia Daemonum, and The Lesser Key of Solomon
From The Lesser Key of Solomon, Crowley/Mathers edition:
The Forthieth Spirit is Raum. He is a Great Earl; and appeareth at first in the form of a Crow, but after the Command of the Exorcist he putteth on Human Shape. His office is to steal Treasures out King's Houses, and to carry it whither he is commanded, and to destroy Cities and Dignities of Men, and to tell all things, Past, and what Is, and what Will Be; and to cause Love between Friends and Foes. He was of the Order of Thrones. He governeth 30 Legions of Spirits; and his Seal is this, which wear thou as aforesaid.
This demon was of the angelic order Throne