The 7th House in Astrology: Marriage and Partnership

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Several houses in the ancient sources disagree with each other, or survive only in fragments. The 7th house is the opposite case: it's the most consistently confirmed house we found, across four separate texts.

Four independent confirmations

Firmicus Maternus states it twice: "the house of the spouse, in the seventh" (Mathesis II.14), and in more detail, "the seventh house… is called the Descendant… from this place we seek the quality and extent of marriages" (II.19). Manilius, an entirely different Latin poet writing on astrology (Astronomica II.836-839), independently calls the same point "the last cardinal point… holding the setting [sun]… pertaining to the sum of things and the end of labors, marriages and feasts, and the final times of life."

Two different Latin authors, in two different works, land on the same house for the same reason: it is the Descendant — the point directly opposite the Ascendant, where the horizon "sets." (The oldest Greek source we have, Valens, is missing his passage on this specific house — a gap in the surviving manuscript, not a disagreement.)

What it actually governs

Marriage and spouse — consistently, in the plain sense of the word each source uses (coniunx, nuptiae): a specific vocabulary in Latin for legal/formal marriage, not "romantic love" in general. That distinction matters: romantic attraction is read from a different, separately calculated point (the Lot of Eros — see our 5th house article), not from this house.

Why the "angular" position matters here too

Like the 1st, 4th, and 10th houses, the 7th sits on one of the chart's four cardinal points (the Descendant). Ancient astrologers treated planets landing here as carrying unusual weight — which is part of why this house, specifically, accumulated the strongest and most consistent classical attention of the twelve.

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