Thierens, A.E.

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Thierens, A.E. Gender: M
Adolph Ernestus Thierens
born on 20 December 1875 at 09:00 (= 09:00 AM )
Place Brielle, Netherlands, 51n54, 4e10
Timezone LMT m4e10 (is local mean time)
Data source
BC/BR in hand
Rodden Rating AA
Collector: Astrodienst
Astrology data s_su.18.gif s_sagcol.18.gif 28°07' s_mo.18.gif s_libcol.18.gif 06°42 Asc.s_capcol.18.gif 09°43'

Portrait of A.E. Thierens 
(click to view image source)
A.E. Thierens
license fair-use


Dutch officer in the Royal Marines, an astrologer and author of "Elementen der practische astrologie" and "Elementen der esoterische astrologie".

While visiting The Netherlands early in the 20th century, Alan Leo met A.E. Thierens and this led to a Dutch version of the magazine "Modern Astrology" in 1906 under the joint editorship of Alan Leo and H.J. van Ginkel, which was changed to: "Urania" the following year under Dutch editors and still exists today. In Urania he wrote about esoteric subjects like astrology, Theosophy, Tarot and Freemasonry.

The publication of "Urania" marked the start of modern Dutch astrology and in the same year, 1907, the Association for Modern Astronomy and Astrology was formed, which later became the Nederlandsch Astrologisch Genootschap (Dutch Astrological Association), and in October 1947, the Stichting Werkgemeenschap van Astrologen (WVA, Workcommunity of Astrologers), also called the School of Ram, formed by Th.J.J. Ram, L. Knegt and A.E. Thierens.

The WVA was the first to take up astrological education. Features of the School of Ram with its esoteric foundation are a unique house-system: the Ascendant-Parallel-Circle system, the use of 'true places' of planets and of hypothetical planets like Vulcanus and Persephone.

His military career as sea officer ended after an accident on board of a ship. In 1920 Thierens got an administrative function dealing with Dutch ships in Suriname. In 1921 he retired. He went back to Europe. In 1925, Thierens received a PhD in philosophy at the university of Lausanne, in 1926 a honorary doctorate.

Thierens died on 30 December 1941 in Bussum.


He was the eldest and fourth surviving child child of Gregorius Cornelis Carolus Thierens (15 December 1836, Schoonhoven - 25 February 1891, Den Haag) and Rebecca Adriane Hein (8 December 1844 3 AM, Brielle - 28 March 1913, Rijswijk).

On 1 April 1908 he married Wilhelmina Maria Smol (29 February 1884, Dordrecht - 5 April 1954, Amsterdam)in Den Haag. Between 1909 and 1913 they got three children. On 18 October 1927 they divorced in Haarlem. On 25 November 1927 he married Samuelle Theophile Barones van Der Feltz (6 February 1898, Timbang Langkat, Ind - 22 March 1983, Amsterdam) at Te Levallois Perret in France. They divorced 5 July 1932 in Haarlem. On 27 January 1933 he married the 26 years old "Lot" Charlotte Henriette Agatha Haverkamp Begemann (13 April 1906, Berkeley - 1983) in Zandvoort.

Link to Dutch Wikipedia


  • associate relationship with Knegt, Leo (born 26 December 1882). Notes: Workcommunity of Astrologers (WvA)
  • associate relationship with Ram, Theo (born 19 December 1884). Notes: Urania, WvA


  • Other Family 27 March 1877 in Brielle (Sister Born: Maria Johanna Magdalena Thierens)
    chart Placidus Equal_H.
  • Other Family 13 June 1879 in Brielle (Brother born: Gregorius Cornelis Carel Thierens)
    chart Placidus Equal_H.
  • Other Family 6 February 1887 in Den Haag (Brother born: Johan Wilhelm Thierens)
    chart Placidus Equal_H.
  • Work : Start Business 1906 (Co-started astrological magazine Urania)
  • Social : Joined group 1907 (Co-formed astrological group)
  • Relationship : Marriage 1 April 1908 in Den Haag (Wilhelmina Maria Smol)
    chart Placidus Equal_H.
  • Family : Adopted a child 6 March 1909 in Leiden (Willemine Adolfine Thierens)
    chart Placidus Equal_H.
  • Family : Adopted a child 2 August 1913 in Utrecht (Adolph Ernestus Thierens)
    chart Placidus Equal_H.
  • Death of Sibling 9 November 1926 in Malang (Gregorius Cornelis Carel Thierens)
    chart Placidus Equal_H.
  • Relationship : Divorce dates 18 October 1927 in Haarlem (Wilhelmina Maria Smol)
    chart Placidus Equal_H.
  • Relationship : Marriage 25 November 1927 (Samuelle Theophile Barones van Der Feltz)
    chart Placidus Equal_H.
  • Relationship : Divorce dates 5 July 1932 in Haarlem (Samuelle Theophile Barones van Der Feltz)
    chart Placidus Equal_H.
  • Relationship : Marriage 27 January 1933 in Zandvoort NH (Lot" Charlotte Henriette Agatha Haverkamp Begemann)
    chart Placidus Equal_H.
  • Work : Published/ Exhibited/ Released 1935 (Astrology in Mesopotamian Culture: An Essay)
  • Death, Cause unspecified 30 December 1941 in Bussum (Age 66 +10 days)
    chart Placidus Equal_H.

Source Notes

LMR: Tees Reitsma from colleague information (given as local time), contributed to Donna Cunninghams Astrologer's Memorial page (Same data given by Cirkels).

Svi: The local time 8:34:30 AM quoted by LMR seems to be a rectified time. The place Den Bosch is wrong as Thierens was born in Brielle on 20 December 1875 at 9 AM ("des morgens ten negen ure bevallen") according to the BC.


  • Lifestyle : Social Life : Groups (Astrological, theosophical)
  • Personal : Religion/Spirituality : Theosophy/Vedanta
  • Vocation : Occult Fields : Astrologer (Pro)
  • Vocation : Writers : Astrology (Books)
  • Vocation : Writers : Religion/ Philosophy (Astrological magazines)
  • Notable : Famous : Top 5% of Profession (Noted Dutch astrologer)