Koch, Robert

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Koch, Robert Gender: M
Robert Heinrich Hermann Koch
born on 11 December 1843 at 23:45 (= 11:45 PM )
Place Clausthal-Zellerfeld, Germany, 51n48, 10e20
Timezone LMT m10e20 (is local mean time)
Data source
Rodden Rating B
Collector: Scholfield
Astrology data s_su.18.gif s_sagcol.18.gif 19°19' s_mo.18.gif s_leocol.18.gif 17°02 Asc.s_vircol.18.gif 20°21'

Robert Koch


German physician and the founder of modern bacteriology, known for his role in identifying the specific causative agents of tuberculosis, cholera, and anthrax and for giving experimental support for the concept of infectious disease. In addition to his innovative studies on these diseases, Koch created and improved laboratory technologies and techniques in the field of microbiology, and made key discoveries in public health.

His research led to the creation of Koch’s postulates, a series of four generalized principles linking specific microorganisms to specific diseases that remain today the "gold standard" in medical microbiology. As a result of his groundbreaking research on tuberculosis, Koch received the Nobel Prize in Physiology or Medicine in 1905. The Robert Koch Institute is named in his honour.

In 1877, he demonstrated the techniques for fixing and staining bacteria. Notation for his work on wounds, septicemia and splenic fever gained him the seat on the Imperial Board of Health in 1880.

He isolated Mycobacterium tuberculosis at the age of 39 in 1882. In 1884 in India, Koch was able to determine the causative agent of cholera, isolating Vibrio cholerae.

On 18 July 1867, Koch married Emma Adolfine Josephine Fraatz, and the two had a daughter, Gertrude, in 1868. Their marriage ended after 26 years in 1893, and later that same year, he married 21-year-old actress Hedwig Freiberg, causing something of a scandal as she was 28 years younger than him.

Koch died at 7pm on 27 May 1910 in Baden-Baden, Germany.

Link to Wikipedia biography



  • Relationship : Marriage 18 July 1867 (Emma Adolfine Josephine Fraatz)
    chart Placidus Equal_H.
  • Family : Change in family responsibilities 6 September 1868 (Birth of daughter, Gertrude)
    chart Placidus Equal_H.
  • Relationship : Divorce dates 2 June 1893 (Emma Koch, nee Fraatz)
    chart Placidus Equal_H.
  • Relationship : Marriage 13 September 1893 (Hedwig Freiberg)
    chart Placidus Equal_H.
  • Work : Great Achievement 10 December 1905 (Nobel Prize)
    chart Placidus Equal_H.
  • Death, Cause unspecified 27 May 1910 at 7:00 PM in Baden-Baden (Age 76)
    chart Placidus Equal_H.

Source Notes

Original entry had no birth time: Steinbrecher quotes B.C. for date and place, no time given. Taeger IHL quotes speculative time of 8.33 PM from Rodden.

Starkman on 28 May 2017: "In April 1987 Steinbrecher got a letter (NOT B.C.) form Ev.-luth. Pfarramt Clausthal that Robert Koch was born on 12 December 1943. However, all the sources, without exception has the birth date of 11 December. Most probably, there is an typo error in the letter he got"

Starkman rectified to 11 December 1843 04.38.04 LMT Asc 11Sco02'

On 23 July 2017 Sy Scholfield added approx. birth time of 11:45pm, quoting from Deutsche Revue (über das gesamte nationale Leben der Gegenwart), Volume 16, Issues 1-2 (C. Habel., 1891; E. Trewendt, 1891), p. 180: "... die Geburt des dritten Sohnes, welcher am 11. Dez. 1843 kurz vor 12 Uhr nachts das Licht der Welt erblickte. Derselbe erhielt die Namen Heinrich Hermann Robert. Nach dem Klausthaler Kirchenbuche soll Robert Koch erst am 12. Dez. kurz nach Mitternacht geboren sein, jedoch ist diese Eintragung eine irrtümliche und angeblich durch ungenaue Anmeldung der Hebamme verursacht. Robert Koch hat daher auch stets den 11. Dezember als seinen Geburtstag festlich begangen." --- (Translation: "... birth of the third son, who first saw the light of the world on 11 Dec. 1843 shortly before 12 midnight. The name was Heinrich Hermann Robert. According to the Klausthal church book, Robert Koch is said to have been born on 12 Dec. shortly after midnight, but this entry is an erroneous and allegedly inaccurate registration of the midwife. Robert Koch therefore always celebrated the 11th of December as his birthday").

Scholfield quotes time of death from Jahrbuch der naturwissenschaften, Vol. 26 (1911), p. 439: "starb zu Baden-Baden am 27. Mai 1910, abends 7 Uhr."


  • Family : Relationship : Number of Divorces (One)
  • Family : Relationship : Number of Marriages (Two)
  • Family : Parenting : Kids 1-3 (One daughter)
  • Vocation : Science : Biology (Bacteriologist)
  • Notable : Awards : Nobel prize (1905)
  • Notable : Famous : Founder/ originator (Isolated TB bacteria)
  • Notable : Famous : Founder/ originator ("Koch's postulates")
  • Notable : Book Collection : American Book