In astrology, a Dispositor is the planet that rules the zodiac sign occupied by another planet or chart factor. For example, if a planet is located in a sign ruled by another planet, that ruling planet is considered its dispositor. Astrologers use dispositors to trace relationships among chart factors and to explore how planetary influences are organized within a natal chart. Following these rulership connections from one planet to another can form a dispositor chain, which may reveal broader patterns of concentration, dependence, or organization within the chart.