Horoscope becomes a determining factor if one of the partners is Mângalik (lit., negatively influenced by Mars).
Shorthand of the Soul: the Quotable Horoscope by David Hayward, published by Flare Publications, 1999 ISBN 978-0-9530261-2-8
In 1905, during one of its numerous refurbishments, a stone carving of an astrological horoscope was installed in the outer wall, on the southwest corner.
In fact, the one known horoscope of Henri II by Gaurico is literally quoted in the Dictionnaire of Pierre Bayle.