Derivative Houses

A system that describes the affairs of a house as they relate to another, assuming that one of the houses of interest is the first. For example, the second house to the third, actually the fourth house in a natal chart, describes financial affairs (a second house matter) of brothers and sisters (a third house matter). The fourth house, which rules family interests, also represents the partner’s career and reputation since it is the tenth from the seventh, which is associated with one’s business or marital partners.