A record of documented arms, meaning and origin, researched for the Koester family of Germany.
Reg. 5061 · German, J–L
Coat of Arms & Family Crest Details
Symbols on this shield
mulletThe third son, and a divine quality from above
heartSincerity, charity and true affection
Colours
Blue (Azure)Means: Loyalty and truth
Silver (Argent)Means: Peace and sincerity
Red (Gules)Means: Military strength
Historical info
Source
J. B. Rietstap, Armorial Général, Gouda: G. B. van Goor Zonen, 1884–87
Blazon (the actual original written record)
“Coupé: au 1 d'azur à une étoile d'arg.; au 2 d'arg. à un coeur de gu. C.: deux bras, arm. d'arg., supp. le coeur. L.: d'arg. et de gu.”
GermanyFrancfort s, c. 1765
Where the Koester Arms Were Recorded
Francfort s
Map of Germany showing where the Koester arms are recorded
The Koester arms were recorded in Francfort s, c. 1765.
This is where the arms were entered in the register. Families often moved to other parts of the country, so the same name can turn up in more than one region.
The body that granted and recorded arms in Germany in this period.
Francis I, Holy Roman Emperor
Sovereign of the period
Francis I, Holy Roman Emperor
1745–1765
Reigning in Germany when the Koester arms are first recorded.
How Arms Worked in Germany
In the Holy Roman Empire, coats of arms were often granted to individuals by the Emperor or his representatives. These arms were then passed down through the generations to all legitimate descendants of the original holder. Younger branches of a family usually kept the same shield design without needing to change it, as the arms belonged to the entire lineage.
Granting authority
The Holy Roman Emperor held the sole power to grant new coats of arms throughout his vast imperial territories.
How they got arms
Families typically obtained their coats of arms through a formal imperial grant or by proving their noble status to the authorities.
Where arms were recorded
These grants were officially recorded in the Imperial Chancery registers, which began keeping formal records of such honors during the Middle Ages.
The family's standing
Recorded among the armigerous families of Germany.
Origin & History of the Koester Family in Germany
The surname Koester originates from the German word *Küster*, which refers to a sexton or a church official responsible for maintaining a house of worship and its grounds. During the Middle Ages, surnames were often adopted based on a person’s occupation, so families carrying this name likely held important roles within their local parish communities. By the mid-18th century, the family was well-established in the region of Frankfurt, where records confirm their presence by 1765. At that time, Frankfurt served as a major center for trade and religious life in the Holy Roman Empire, providing a stable environment for families to settle and grow. As the family moved through different regions, the spelling of the name evolved from its original form to the version used today, reflecting the linguistic shifts common in German history.
Related Branches & Arms
Root word
Custos
A Latin term meaning a guardian, watchman, or protector.
This name
KoesterAn occupational surname for a sexton or a church official responsible for maintaining a church building.
also spelled
Koester
Coster
Documented Sources
J. B. Rietstap, Armorial Général, Gouda: G. B. van Goor Zonen, 1884–87
Bahlow, Hans. Deutsches Namenlexikon: Familien- und Vornamen nach Ursprung und Sinn erklärt. 1967
Heintze, Albert. Die deutschen Familiennamen: geschichtlich, geographisch, sprachlich. 1903
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