- I have repeatedly found the semi-sextile (30 degrees) to be an unfortunate or stressful aspect, similar to the quincunx (150 degrees). A reader (Jose) provided a link to the birth date of Henri d’Effiat who was beheaded in France for plotting against Cardinal Richelieu. I discussed this case in an earlier post but did not have an accurate date of birth. With the new information, it becomes clear that the semi-sextile from his ASC-ruler to the ruler of his 8th house symbolized his unfortunate death. I have revised that earlier post about d’Effiat for those who may wish to read it.