Surrealist Ball At Ferrières, 1972, Château De Ferrières, France

In 1816, four of the brothers were each elevated to the hereditary nobility by Austrian Emperor Francis I; moreover, a fifth brother, Nathan, was elevated in 1818. All of them were granted the Austrian title of baron or Freiherr on 29 September 1822. As such, some members of the family used "de" or "von" Rothschild to acknowledge the grant of nobility. Barons (Knights) who received their title from the Holy Roman Emperor are known as Barons of the Holy Roman Empire, Reichsfreiherr, although the title is sometimes shortened to Freiherr.
In 1847, Sir Anthony de Rothschild was made a hereditary baronet of the United Kingdom. In 1885, Nathan Mayer Rothschild II (1840–1915) of the London branch of the family, was granted the hereditary peerage title Baron Rothschild in the Peerage of the United Kingdom.
Rothschild family banking businesses pioneered international high finance during the industrialization of Europe and were instrumental in supporting railway systems across the world and in complex government financing for projects such as the Suez Canal. During the 19th century, the family bought up a large proportion of the property in Mayfair, London.
Major 19th century businesses founded with Rothschild family capital include: