Anima Astrologiae or A Guide for Astrologers by William Lilly 1676

The 36th Consideration is, To observe when the Infortunes are the obstructors of a business, whether the Fortunes behold them with a Trine or Sextile Aspect; for then their ill-nature will be allayed and mitigated; but much more if these receive them.

37.Whether Fortunes are Significators