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Sources for business history

Sources for art history: Catalogue of the pictures of Alfred de Rothschild 1901

Sources for yachting history: Plans for Nathaniel von Rothschild's yacht Veglia 1905

Sources for natural history: Walter 2nd Lord Rothschild and his zebra carriage: c.1910

Sources for global financial history: Map of lines of the Brazil Railway Company: c.1920

Sources for business history: index cards to bank files

Sources for social history: Rothschild Hospital Paris: 1920s

Sources for business history: detail of a Rothschild bond coupon

Sources for architectural history: Halton House: 1890s

Sources for the history of travel: Lionel de Rothschild's tours of Spain: 1909

Sources for local history: Tring Park: c.1900

Sources for Royal history: shooting party with Edward Prince of Wales: 1893

Sources for political history: Lionel de Rothschild: first Jewish MP: 1858

Sources for sporting history: St Amant winner of the Derby: 1904

Sources for local history: gardeners at Aston Clinton: 1899

Sources for Rothschild family history: Lionel de Rothschild's yacht Rhodora: 1927

Sources for London history: entrance to New Court: 1965

Sources for design history: plans for Lionel de Rothschild's Rolls-Royce: 1930

Sources for business history: Rothschild gold bars produced by the Royal Mint Refinery: 1930s

Sources for business history: letters of August Belmont Rothschild Agent in New York: 1860s

The 'Warburg' letter, 1926

The collections of The Rothschild Archive London contain over two million pieces of paper, volumes, files, photographs, artefacts and art works. Archivist's Choice is a series a short articles each highlighting a treasure from the Archive collection, or celebrating an anniversary or special event. Browse through our library of Archivist's Choice articles to discover some of the fascinating stories behind our collections.

The New Court ethic: 'the fine tradition of New Court which combines business with humanity, without neglecting either': letter from Siegmund Warburg to Lionel de Rothschild and Anthony de Rothschild, 1926

As Rothschild waves goodbye to its summer interns for another year, we pause to reflect on their equivalent nearly 90 years ago.

Sir Siegmund George Warburg (1902-1982) was a German-born English banker. He was a member of the prominent Warburg family, and played an important role in the development of merchant banking.

In 1926, Siegmund spent time at New Court, under the tutelage of Lionel de Rothschild (1882-1942) and his brother Anthony (1887-1961). His time at the London house obviously made an impression, as his gracious thank-you letter shows.

Warburg was later to become a senior City figure who firmly believed that financial integration of Europe was an essential step in the development of the European economy. He managed the firm he created, S.G. Warburg & Co. until the 1970s. S.G. Warburg & Co. was later acquired by UBS AG, creating UBS Warburg, which then became UBS AG.

                                                        London, 1st November 1926

Dear Mr Lionel de Rothschild, dear Mr Anthony de Rothschild

At the moment of leaving London I wish to tell you how grateful I am to you for the time I was allowed to spend at New Court which I consider a great honour. You provided me with many opportunities to learn. I learnt quite a lot of details of business-machinery. But I learnt something also which will be far more important to me in my future life. This is the fine tradition of New Court which combines business with humanity, without neglecting either. To learn such a combination is particularly valuable to somebody from the continent where so often humanity is killed by business. When one has stayed for some time at a certain place and felt more and more at home there, a feeling of attachment accompanies one after having left such a place. That will be very strongly the case with me towards New Court. I shall always think with great pleasure of the months I spent here and I will be very glad indeed whenever I shall be able to bring about any business or other reasons for visiting New Court again. With many thanks for very much kindness allow me to say “Auf Wiedersehen”. With best wishes and kind regards

I am

Yours sincerely

Siegmund Warburg

RAL reference: RAL XI/111/433


Letter from Siegmund Warburg to Lionel de Rothschild and Anthony de Rothschild 1926

Letter from Siegmund Warburg to Lionel de Rothschild and Anthony de Rothschild 1926