Anima Astrologiae or A Guide for Astrologers by William Lilly 1676

The 91st Consideration is, To observe in Questions or Nativities, whether Mars be in any of the Angles of the Figure, especially in Fixed Signs; or when Scorpio Ascends, for then he destroys all the good signified by that question, or at least much impedes and diminishes it; Unless Jupiter behold him with a Trine or Sextile; for then his malice is mitigated; but yet as Jupiter is either strong or weak.

92.Whether the Significator of death apply to the Native’s Significator