Death has a house and it has a chapter, and the two approach it differently.
The house is the eighth. Lilly gives it death and the manner of it, wills, legacies, the dowry, and the goods of the dead. In the Greek scheme the same place is the Idle Place and it has no planetary joy. The eighth follows the seventh, so in the logic of the sequence it is what comes after the other party has been dealt with, and it holds what passes from one person to another when one of them is no longer there.
The chapter is Ptolemy's, in the fourth book, on the quality of death. It is worth noticing what that title claims and what it does not. Ptolemy is not offering a date. He is asking what kind of death, and reading the answer from the planets afflicting the relevant place: whether it is sudden or slow, in public or alone, by violence, by illness or by age. The tradition's confidence about kind and its reticence about timing is a real feature of it rather than a failure of nerve.
Saturn is the general significator. It is the greater malefic, cold and dry, the outermost of the seven visible planets and the boundary of the classical cosmos, and everything about its signification is terminal: limit, age, decay, endings, and time as a thing that runs out.
Sources TetrabiblosClaudius Ptolemy with Christian AstrologyWilliam Lilly