
The Dispositor of a Graha is the ruler of the Rashi (sign) it is placed in.
. The dispositor acts as a filter limiting the Grahas ability to express qualities that are too opposite the dispositor: the dispositor colors the expression of the Graha, and the dignity of the dispositor is important. In that an exalted dispositor will enhance the auspiciousness of the Graha.
For example Mars may be placed in Aquarius ruled by Saturn, so the dispositor is Saturn
For example, Adolf Hitler’s Mangal (Mars) is placed in Aries, so the dispositor is Mars, we could say that Mangal’s qualities will be reinforced by the qualities of Mars.
Even the dignity of the dispositor is important. An exalted dispositor will enhance the auspiciousness of the Graha as well.
The qualities of the Graha are also affected by the presence of other Grahas in the signs it rules. For example, Hitler has Jupiter in Sagittarius so Jupiter qualities are reinforced

Adolf Hitler’s Chart