Sir Siegmund George Warburg (30 September 1902 -- 22 October 1982) was a German-born English banker. He was a member of the prominent Warburg family. He played a prominent role in the development of merchant banking. About the book: https://www.amazon.com/gp/product/0143119400/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=0143119400&linkCode=as2&tag=tra0c7-20&linkId=8eafa2f4e4e51085cfda44a58b5a9e55
He was born in the village of Seeburg, Germany (today part of Bad Urach), the only child of Georges Siegmund Warburg and Lucie.
Georges Siegmund Warburg and Lucie raised a young Siegmund Warburg on an estate (Uhenfels Castle) in Swabia in South West Germany far away from the main branch of the family, which operated the second largest bank in Hamburg, up north. Siegmund had a sincere and deep affection for his mother who taught him to have a critical and inquisitive mind.
In the period immediately before the Second World War he worked under cover for the Z Organisation, a highly secret offshoot of MI6/SIS, and reported impressively from Switzerland on his regular meetings with Hjalmar Schacht, then the president of the Nazi German Reichsbank and thus the most powerful German banker.
He was forced to flee the National Socialist regime of Adolf Hitler and moved to the United Kingdom in 1934 where he co-founded S. G. Warburg & Co. in 1946 with Henry Grunfeld.
In the United Kingdom, Siegmund was considered an 'upstart' to the establishment in the City of London. His most famous achievement was the establishment of the EuroBond market. He firmly believed that financial integration of Europe was an essential and natural step in the development of the European economy.
The firm that he created with Grunfeld, S.G. Warburg & Co., was a major British investment bank (merchant bank at the time), and Siegmund was the bank's managing director until the 1970s - when although he officially had retired and was living in Switzerland, still retained a personal secretary to draft correspondence and assist with the operations of the firm. Control of the firm S.G. Warburg and Co. was retained through a family controlled holding company called 'Mercury Securities', where stock was allocated to S.G. Warburg & Co. partners as well as his Swedish wife and children.
The firm S.G. Warburg & Co. was acquired by UBS AG creating UBS Warburg, which then after a rebranding exercise was dropped, leaving only UBS AG.
He was also simultaneously a partner in the U.S. investment bank Kuhn, Loeb from 1953 until 1964 through a holding company to avoid the restrictions of the Glass--Steagall Act.
He died in London in 1982.
The Warburg family is a prominent family and financial dynasty of German Jewish descent, noted for their varied accomplishments in investment banking, physics, classical music, art history, pharmacology, physiology, finance, private equity and philanthropy.
They originated as the Venetian Jewish del Banco family, one of the wealthiest Venetian families in the early 1500s. Following restrictions imposed on banking and the Jewish community, they fled to Bologna, and thence to Warburg, in Germany, in the 16th century, after which they took their name.
The family re-established itself in Altona, near Hamburg in the 17th century, and it was there that M. M. Warburg & Co. was established in 1798, among the oldest still existing investment banks in the world. Other banks created by members of the family include: M.M.Warburg & Co., Warburg Pincus, S. G. Warburg & Co. (becoming UBS Warburg).
The family is traditionally divided into two prominent lines, the Alsterufer Warburgs and the Mittelweg Warburgs. The Alsterufer Warburgs descended from Siegmund Warburg (1835--1889) and the Mittelweg Warburgs descended from his brother Moritz M. Warburg (1838--1910). They took their nicknames from the brothers' respective addresses in Hamburg. The brothers were grandsons of Moses Marcus Warburg.
Siegmund George Warburg was of the Alsterufer line; the five brothers Abraham (Aby) M., Max M., Paul M., Felix M. and Fritz Moritz Warburg were of the Mittelweg line.
The brothers Moses Marcus Warburg (1763--1830) and Gerson Warburg (1765--1826) founded the M. M. Warburg & Co. banking company in 1798. Moses Warburg's great-great grandson, Siegmund George Warburg, founded the investment bank S. G. Warburg & Co in London in 1946. Siegmund's second cousin, Eric Warburg, founded Warburg Pincus in New York in 1938. Eric Warburg's son Max Warburg (not to be confused with Eric's father Max Warburg) is currently one of the three partners of M.M.Warburg & Co., Warburg. Max Warburg's elder brother Aby Warburg used his money to establish the Kulturwissenschaftliche Bibliothek Warburg in Hamburg, since 1934 The Warburg Institute in London. Paul Warburg is most famous an advocate of the US Federal Reserve System, established in 1913.