Marquis, 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 — silver 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 63
“The Sixty-third Spirit is Andras. He is a Great Marquis, appearing in the Form of an Angel with a Head like a Black Night Raven, riding upon a strong Black Wolf, and having a Sharp and Bright Sword flourished aloft in his hand. His Office is to sow Discords. If the Exorcist have not a care, he will slay both him and his fellows. He governeth 30 Legions of Spirits, and this is his Seal, etc.”
Verbatim, cut from the 1904 text by script/extract_goetia.rb. Mathers' spelling and capitalisation are left exactly as printed.