Geomancy Oracle

A medieval European oracle of sixteen figures cast onto a shield chart. Four mothers generate four daughters, which combine into four nieces, two witnesses, and a final judge. Each figure carries a meaning, an advice, and a tone (favourable, restrictive, mixed). Authentic mathematics, modern interpretation.

Authentic shield-chart math

Each figure is built of four lines (single or double dots). Mothers generated by 16 random "yes/no" decisions. Daughters by reading line-by-line. Nieces by XOR-style addition (Carcer). Witnesses combine the four nieces. Judge is the final synthesis. Mathematics from the medieval Latin tradition.

Sixteen figures

Via, Populus, Carcer, Conjunctio, Fortuna Major, Fortuna Minor, Acquisitio, Amissio, Laetitia, Tristitia, Puer, Puella, Albus, Rubeus, Caput Draconis, Cauda Draconis. Each with its keywords, meaning, advice, and yes/no tone. Detail page per figure.

Frequently Asked Questions

Who used geomancy historically?

Geomancy entered Europe through Arabic mathematical-astrological texts (~12th century) and was widely practiced in medieval Europe alongside astrology. Major figures: Robert Fludd, Christopher Cattan, Cornelius Agrippa.