Friedrich Leibniz

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Friedrich Leibniz
Friedrich Leibnütz.jpg
Born1597 (1597)
Died1652 (aged 54–55)
Leipzig, Germany
Alma materUniversity of Leipzig (M.A., 1622)
Spouse(s)Anna Fritzsche, Dorothea Voigt, Catharina Schmuck
RelativesGottfried Leibniz (son)
Scientific career
FieldsMoral philosophy
InstitutionsUniversity of Leipzig
Notable studentsJakob Thomasius

Friedrich Leibniz (or Leibnütz; 1597–1652)[1] was a Lutheran[1][2] lawyer and a notary, registrar and professor of moral philosophy within Leipzig University.[1][3][4][5] He was the father of Gottfried Leibniz.


Leibniz was born in Altenberg, Saxony, the son of Ambrosious Leibniz, a civil servant, and a Leipzig noblewoman named Anna Deuerlin.[3]

He completed his master's degree at the University of Leipzig during 1622 and became an actuary in administration at the university.[1] His first marriage in 1625 produced a son, Johann Friedrich, and a daughter, Anna Rosina. He was elected to the chair in moral philosophy at Leipzig in 1640. A childless marriage to a second wife ended with her death 1643.[3][6] A subsequent 1644 marriage to Catharina Schmuck, a daughter of a well known lawyer (or professor of law[5]) produced a son, the polymath Gottfried Wilhelm Leibniz.[3]

21. Juny am Sontag 1646 Ist mein Sohn Gottfried Wilhelm, post sextam vespertinam 1/4 uff 7 uhr abents zur welt gebohren, im Wassermann.[7][8]

During 1646 Leibniz was vice chairman of the faculty of philosophy and also was Professor of Moral Philosophy at the University of Leipzig, in addition to employment as actuary.[3] He possessed a collection of books of ancient source.[5] He died in Leipzig.

... a competent though not original scholar, who devoted his time to his offices and to his family as a pious, Christian father.[9]

Leibniz is notable because his mathematical "descendants," which include Carl Friedrich Gauss, number more than 170,000.[10]


Leibniz was married three times. His first marriage was on 31 January 1625 to Anna Fritzsche, who died on 14 March 1634 in Leipzig, the daughter of Mag. Benedict Fritzsche. From the marriage came six known children, only two of whom lived to adulthood:

  • Johann Friedrich Leibniz (16 January 1632, Leipzig- 19 March 1696 ibid.) 1650 Uni. Leipzig, 13 July 1650 Bacc. Phil. ibid., 27 January 1653 Mag. Phil. ibid., 1660 teacher Leipzig, 1667 professor and third colleague at the Thomas School in Leipzig, married on 25 August 1668 in Altenburg Dorothea Elisabeth Schmalz (16 April or 18 April 1649, Altkirchen- 6 August 1681, Leipzig), daughter of the archdeacon in Altenburg Magnus Schmalz (11 March 1615, Kohren- 12 December 1683, Altenburg) and Regina Freiesleben (9 September 1629, Altenburg- 28 June 1675, Altenburg)
  • Johann Gottfried Leibniz (died young)
  • Elisabeth Leibniz (died young)
  • Anna Magdalena Leibniz (died young)
  • Susanna Leibniz (died young)
  • Anna Rosina Leibniz (25 December 1629, Leipzig- 26 March 1666, Orlamünde) married in February 1653 in Leipzig with the Mag. and later superintendent in Orlamünde Heinrich Freiesleben (5 January 1628, Altenburg- 26 March 1666, Orlamünde)

After two years of widowhood, he entered into his second marriage on 24 May 1636 to Dorothea Voigt (18 July 1599, Leipzig- 25 January 1643, Leipzig), the daughter of the Leipzig citizen and bookseller Bartholomäus Voigt (11 April 1564, Halle (Saale)- 18 January 1637, Leipzig) and Maria (née Rambau). The marriage remained childless.

His third marriage was on 21 May 1644 in Leipzig to Catharina Schmuck (5 November 1621, Leipzig- 6 February 1664, Leipzig), the daughter of Professor Dr. jur. and Mag. Phil. Wilhelm Schmuck (1 May 1575, Suhl- 28 December 1634, Leipzig) and Gertraude Lindner, the daughter of Johann Lindner and Elisabeth Clode/Klodt. From the marriage came a son and a daughter:

  • Gottfried Wilhelm Leibniz (21 June 1646- 14 November 1716)
  • Anna Katharina Leibniz (31 July or 1 August 1648, Leipzig- 13 February 1672 ibid.), married on 25 September 1666 in Leipzig with the Lic. theol. and Vesper preacher Simon Loeffler.


  1. ^ a b c d Brandon C. Look. The Continuum Companion to Leibniz. - Continuum International Publishing Group, 2011. 2011-08-04. ISBN 978-0826429759. Retrieved 2012-01-26.
  2. ^ Brandon C. Look. (2007). Leibniz. Stanford Encyclopedia of Philosophy. Retrieved 2012-02-09
  3. ^ a b c d e Gregory Brown (Professor at University of Houston). Friedrich Leibniz. Leibniz Society of North America. Retrieved 2012-01-26.
  4. ^ See references of Heinrich Schepers and Ronald Calinger; in Richard S. Westfall, The Galileo Project, Rice University. Retrieved 2012-01-27.
  5. ^ a b c Ariew, Roger. G. W. Leibniz, life and works. Cambridge Collections Online. In: Nicholas Jolley, Ariew, Roger (1995). "G. W. Leibniz, life and works". The Cambridge companion to Leibniz. Cambridge University Press, 1995. pp. 18–42. doi:10.1017/CCOL0521365880.002. ISBN 978-0-521-36769-1. Retrieved 2012-01-26.
  6. ^ Mitchel T. Keller et al. North Dakota State University. 58108-6050. Retrieved 2012-01-26.
  7. ^ It is possible that the words "im Wassermann" refer to the Moon in the horoscope – the Sun in Cancer; Sagittarius rising (Ascendant).
  8. ^ The quote is given by Hartmut Hecht in Gottfried Wilhelm Leibniz (Teubner-Archiv zur Mathematik Volume 2, 1992), in the first lines of chapter 2, Der junge Leibniz, p. 15; see H. Hecht, Der junge Leibniz; see also G. E. Guhrauer, G. W. Frhr. v. Leibnitz. B. 1. Breslau 1846, Anm. S. 4.
  9. ^ E. J. Aiton, Leibniz : A biography (Bristol- Boston, 1984). In: MacTutor History of Mathematics Archived 2006-09-28 at the Wayback Machine, by J O'Connor and E F Robertson, University of St Andrews. Retrieved 2012-01-26
  10. ^ Mathematics Genealogy Project entry for Friedrich Leibniz

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