Frederick IX of Brandenburg (22 March 1588 in

Cölln Cölln () was the Twin cities, twin city of Old Berlin (Alt-Berlin) from the 13th century to the 18th century. Cölln was located on the Fischerinsel, Fisher Island section of Spree Island, opposite Altberlin on the western bank of the River ...

– 19 May 1611 in Sonnenburg, Prussia (now

Słońsk Słońsk () is a village in Sulęcin County of the Lubusz Voivodeship, in western Poland. It is located east of the border crossing with Germany along national road DK22. The village lies about 25 kilometres (or 16 miles) northwest of Sulęcin and ...

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)) was a Margrave of Brandenburg.

Life

Frederick, a member of the

house of Hohenzollern The House of Hohenzollern (, ; , ; ) is a formerly royal (and from 1871 to 1918, imperial) German dynasty whose members were variously princes, Prince-elector, electors, kings and emperors of Hohenzollern Castle, Hohenzollern, Margraviate of Bran ...

, was a son of the Elector John George of Brandenburg (1525–1598) from his third marriage to Elisabeth (1563–1607), daughter of Prince Joachim Ernest of Anhalt. Frederick was educated in

Frankfurt Frankfurt am Main () is the most populous city in the States of Germany, German state of Hesse. Its 773,068 inhabitants as of 2022 make it the List of cities in Germany by population, fifth-most populous city in Germany. Located in the forela ...

and

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and undertook an extensive Grand Tour through Europe. In 1594, he was appointed

Coadjutor The term "coadjutor" (literally "co-assister" in Latin) is a title qualifier indicating that the holder shares the office with another person, with powers equal to the other in all but formal order of precedence. These include: * Coadjutor bishop ...

and then, in 1610, elected ''Herrenmeister'' (literally, "Master of the Knights", equivalent to Grand Master) of the

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of Brandenburg, which was seated at Sonnenburg. He died at the age of 23 and was buried in the parish church of Küstrin. His motto was (The righteous shall flourish like a palm tree).Max Löbe: ''Walsprüche: Devisen und Sinnsprüche'', BiblioBazaar, LLC, 2009, p. 28

Footnotes

References and sources

* F. A. W. Dünnemann: ''Stammbuch der brandenburgisch-preussischen Regenten'', Nauck, 1831, p. 105
Digitized
* Samuel Buchholtz: ''Versuch einer Geschichte der Churmarck Brandenburg von der ersten Erscheinung der deutschen Sennonen an bis auf jezige Zeiten'', vol 3–4, F. W. Birnstiel, 1767, p. 490 {{DEFAULTSORT:Frederick 09, Margrave of Brandenburg House of Hohenzollern 1588 births 1611 deaths 17th-century German people Margraves of Brandenburg Sons of prince-electors