Abraham Oppenheim
German banker (1804-1878)

Abraham Oppenheim (24 May 1804 in Cologne – 9 October 1878 in Cologne), titled in 1868 as Abraham Freiherr von Oppenheim, was a German banker and patron.
Life and career
Oppenheim was the second son among the twelve children of banker Salomon Oppenheim, Jr. and his wife Therese Stein (1775–1842). Stein (also known as Deigen Levi) was the daughter of a businessman from Dülmen.
The eldest son of Salomon Oppenheim, Jr., Simon, joined his father's banking house in 1821. Abraham followed in the same year, and their mother Therese Oppenheim was given signatory power.
In 1826, Salomon Oppenheim gave his sons Simon and Abraham general power of attorney to continue the banking business. In 1828, Abraham was made a partner. The brothers transformed their father's commission and exchange house into a major private bank. Through Abraham's marriage in 1834 to Charlotte Beyfus, the Oppenheim family became relatives of the Rothschild family.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Oct 12, 2025. The linked authority identifier is Q101542. VIAF identifies the subject as 42622798. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1804, 1878, 1868 and 1775.
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This entry incorporates text from “Abraham Oppenheim” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.