Here’s a good brain teaser for those of you who like puzzles, especially genealogy relationship puzzles:
Gerson Rothschild was the eighth child born to Gelle Blumenfeld and Simon Rothschild. He was born on May 1, 1855, in Waltersbrueck, Germany.
Gerson married Frommet “Fanny” Kugelmann on September 13, 1881, in Waltersbrueck. She was born in Wohra, Germany, on September 11, 1857.

Gerson Rothschild marriage to Frommet Kugelmann, Hessisches Hauptstaatsarchiv; Wiesbaden, Deutschland; Bestand: 920; Laufende Nummer: 8407, Ancestry.com. Hesse, Germany, Marriages, 1849-1930
When I saw Frommet Kugelmann’s name, it rang a bell, but I wasn’t sure why. I searched my tree, and sure enough, I had a Frommet Kugelmann already on my tree. I wrote about her here. She had married Isaac Blumenfeld I, Gelle Blumenfeld’s older brother, and had died March 18, 1842, five days after giving birth to her son Abraham Blumenfeld III. She was about twenty years old when she died.
But was there a connection between the Frommet Kugelmann who had married Isaac Blumenfeld I and the Frommet Kugelmann who married Isaac’s nephew Gerson Rothschild, Gelle’s son? That was not immediately obvious.
From the marriage record for Gerson and his Frommet (to be referred to hereinafter as Fanny to keep them distinct), I knew that Fanny’s parents were Joseph Kugelmann and Male Katten. After searching for more information about Joseph Kugelmann, I learned that he was the son of Hiskias Kugelmann and Knentel Adorn.1 Flipping back to Isaac Blumenfeld’s wife Frommet, I saw that her parents were also Hiskias Kugelmann and Knentel Adorn.2 In other words, Joseph Kugelmann had named his daughter Frommet Fanny Kugelmann for his deceased sister Frommet Kugelmann, Isaac Blumenfeld’s wife.
Gerson and Fanny were thus related through the marriage of Gerson’s uncle Isaac to Fanny’s aunt and namesake, Frommet Kugelmann.
Gerson and Fanny would have eleven children, though two died at birth and one as an infant.
Here’s the brain teaser.
How were the children of Gerson Rothschild and Fanny Kugelmann related to Abraham Blumenfeld III, the son of Isaac Blumenfeld I and his first wife Frommet Kugelmann?
[Jeopardy! Music plays for thirty seconds…]
Here’s the answer:
They were his first cousins, once removed, on the Kugelmann side because their mother Fanny was Abraham III’s first cousin; Abraham III’s mother Frommet Kugelmann and Fanny’s father Joseph Kugelmann were siblings.
Here’s a chart showing that relationship, using one of Gerson and Fanny’s children (Max Rothschild) as an example:
But they were also related to Abraham III through the Blumenfeld side since Abraham’s father Isaac Blumenfeld I and Gerson’s mother Gelle Blumenfeld Rothschild were siblings, making Abraham and Gerson first cousins, thus making Max Rothschild and Gerson and Fanny’s other children first cousins, once removed, to Abraham Blumenfeld III through that connection.
There is a third connection through Abraham Blumenfeld III’s marriage to Friedericke Rothschild—-but I will spare you that one.
OK, since you insist, here’s a chart for that one…
So once again, the family tree twists and groans from the weight of its interconnected branches, twigs, and leaves.
Coming up…the stories of the eleven children of Gerson and Fanny.
- Joseph Kugelmann death record, Hessisches Hauptstaatsarchiv; Wiesbaden, Deutschland; Personenstandsregister Sterberegister; Bestand: 9981; Laufende Nummer: 915, Description Year Range: 1900, Ancestry.com. Hesse, Germany, Deaths, 1851-1958 ↩
- Frommet Kugelmann Blumenfeld death record, Sterberegister der Juden von Neustadt 1824-1875 (HHStAW Abt. 365 Nr. 630), p. 8. Arcinsys Archives of Hessen, at https://arcinsys.hessen.de/arcinsys/digitalisatViewer.action?detailid=v1900007&selectId=45915616 ↩







Amazingly complicated tree !!
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Always interesting!
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Thanks, HMS! 🙂
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Your German relatives’ relationships are far too complicated!!
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All that intramarriage.
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No way I was going to get there! My first thought was grand nieces and nephews.
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LOL! I love sorting these things out!
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A brain teaser indeed… I admit to having ended up a little lost!
I recommended your blog to a genealogy patron the other day – she too has German ancestors and is very invested in her research.
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Thank you!!
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You do have a complicated tree. I admit I read the solution instead of trying to figure it out. I want to spend more time on my husband’s German heritage, but I want him to get involved. His father came to the United States in 1959, and we lived in Germany for 10 years and did some research. I can’t recall if you mentioned traveling to Germany to research.
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I admit that I had to rely on my FamilyTree software to sort it all out.
We did travel to Germany in 2017 to see the towns where my ancestors once lived and to visit the cemeteries where they are buried. I wouldn’t say I traveled to do research though since I had done 90% of the research before we went.
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