Stephan Kekulé von Stradonitz (1 May 1863, in

Ghent Ghent ( ; ; historically known as ''Gaunt'' in English) is a City status in Belgium, city and a Municipalities of Belgium, municipality in the Flemish Region of Belgium. It is the capital and largest city of the Provinces of Belgium, province ...

– 5 May 1933, in

Berlin Berlin ( ; ) is the Capital of Germany, capital and largest city of Germany, by both area and List of cities in Germany by population, population. With 3.7 million inhabitants, it has the List of cities in the European Union by population withi ...

), was a German

lawyer A lawyer is a person who is qualified to offer advice about the law, draft legal documents, or represent individuals in legal matters. The exact nature of a lawyer's work varies depending on the legal jurisdiction and the legal system, as w ...

heraldist Heraldry is a discipline relating to the design, display and study of armorial bearings (known as armory), as well as related disciplines, such as vexillology, together with the study of ceremony, Imperial, royal and noble ranks, rank and genealo ...

and

genealogist Genealogy () is the study of families, family history, and the tracing of their Lineage (anthropology), lineages. Genealogists use oral interviews, historical records, genetic analysis, and other records to obtain information about a family ...

who popularized a

genealogical numbering system Several genealogical numbering systems have been widely adopted for presenting family trees and pedigree charts in text format. Ascending numbering systems Ahnentafel Ahnentafel, also known as the Eytzinger Method, Sosa Method, and Sosa-Strado ...

of ancestors. Stephan was the son of the prominent chemist

Friedrich August Kekulé von Stradonitz Friedrich may refer to: Names *Friedrich (given name), people with the given name ''Friedrich'' *Friedrich (surname), people with the surname ''Friedrich'' Other *Friedrich (board game), a board game about Frederick the Great and the Seven Years' ...

, descended from a

Czech Czech may refer to: * Anything from or related to the Czech Republic, a country in Europe ** Czech language ** Czechs, the people of the area ** Czech culture ** Czech cuisine * One of three mythical brothers, Lech, Czech, and Rus *Czech (surnam ...

noble A noble is a member of the nobility. Noble may also refer to: Places Antarctica * Noble Glacier, King George Island * Noble Nunatak, Marie Byrd Land * Noble Peak, Wiencke Island * Noble Rocks, Graham Land Australia * Noble Island, Gr ...

family from

Bohemia Bohemia ( ; ; ) is the westernmost and largest historical region of the Czech Republic. In a narrow, geographic sense, it roughly encompasses the territories of present-day Czechia that fall within the Elbe River's drainage basin, but historic ...

, and his Belgian wife Stéphanie Drory. In 1898, Kekulé von Stradonitz published his interpretation of Eytzinger's and Sosa's method in his ''Ahnentafel-Atlas. Ahnentafeln zu 32 Ahnen der Regenten Europas und ihrer Gemahlinnen'', Berlin: J. A. Stargardt, 1898–1904, containing 79 charts of the sovereigns of Europe and their wives. This method became the most common method of numbering ancestors and is known as the Sosa–Stradonitz Method or

Ahnentafel An ''ahnentafel'' ( German for "ancestor table"; ) or ''ahnenreihe'' ("ancestor series"; ) is a genealogical numbering system for listing a person's direct ancestors in a fixed sequence of ascent. The subject (or proband) of the ahnentafel is ...

External links

The Sosa–Stradonitz System or Ahnentafel Numbering System
1863 births 1933 deaths German genealogists German untitled nobility German male non-fiction writers Immigrants to the German Empire {{Germany-historian-stub