Who is the Lord of the Geniture?
The Lord of the Geniture is, to put it simply, the most powerful planet in the natal chart (by essential dignity) which has the power to assist the native. Essential dignity is straightforward enough to determine, however a strong planet with weak accidental dignity, such as one in the 8th or the 12th house, is not going to be of much use to the native and therefore does not satisfy the conditions necessary to be Lord of the Geniture.