Earl, 30 legions
Rank and legion count as the 1904 edition gives them. The legions come from the phrase that closes almost every entry; the rank comes from the book's own appendix, which classifies all seventy-two and states the metal each rank's seal is to be made in — copper and silver alike equal for this one. The entries use rank words descriptively as well — Eligos appears 'in the form of a goodly Knight' and Barbatos comes 'with four noble Kings' — so a rank harvested from the prose would invent titles the book does not give. Only the appendix classifies.
Sources (1)
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Lemegeton
, The Goetia: The Lesser Key of Solomon the King
— The Goetia, spirit 40
“The Fortieth 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.”
Verbatim, cut from the 1904 text by script/extract_goetia.rb. Mathers' spelling and capitalisation are left exactly as printed.