Descendant (astrology)

The descendant forms the cusp of the seventh house of the horoscope and refers to partners or relationships. The descendant is ruled by the seventh sign of the zodiac, Libra, and its ruler planet, Venus. The sign the seventh house is in represents, for astrologers, the sign of people you are the most attracted by, you easily get along well with and you are most likely to start a love relationship with, if backed up by other zodiacal aspects.

...
Wikipedia