19th-20th century British astrologer; founder of the modern astrology movement, pioneer of the psychological approach.
Giambattista della Porta's concept of natural magic and the connections between astrological principles and natural science.
An early 20th century American astrologer; contributed to the legalization of astrology in the USA.
A 16th century Italian mathematician-astrologer; the first astrologer to analyze his own chart in his autobiography.
A 16th century Neapolitan scientist; conducted studies on physiognomy, natural philosophy and astrological medicine.
A 16th century occultist; systematized astrological magic and decan imagery with his work De Occulta Philosophia.
17th-century French astrologer; achieved the most detailed systematization of primary directions with his work Astrologia Gallica.
Astronomer-astrologer who discovered the laws of planetary motion; theorist of harmonic astrology.
Elizabethan-era mathematician, astrologer and occultist; advisor to Queen Elizabeth I.
17th-century British astrologer; contemporary and rival of Lilly, with works on natal astrology.
A Renaissance-era astrologer (1475–1558) known as an Italian mathematician, astronomer and papal astrologer.
15th-century Italian Neoplatonist; theorist of astrological medicine and cosmic sympathy with his work De Vita.
Morinus's technique of systematic interpretation by classifying planetary determinations according to houses.
17th-century British herbalist-astrologer; the most comprehensive source on plant-planet correspondences.
16th-century French astrologer-prophet; the most well-known figure of the popular prophecy tradition with his work Centuries.
The astrological techniques, eclipse analyses and symbolic methods used in Nostradamus's prophecies.
The Italian monk, mathematician and astrologer (1603–1668) who developed the world's most widely used house system.
15th-century German mathematician-astronomer; developed a house system and precise ephemeris tables.
A 16th-century Danish astronomer-astrologer who advanced both astronomy and astrology through precise observations.
The students Tycho Brahe trained at his observatory on the island of Hven, who went on to shape the history of astrology.
The greatest figure in British astrology; his Christian Astrology (1647) is the foundational English-language reference work on horary astrology.