James Mayer de Rothschild

French banker (1792–1868)

James Mayer de Rothschild arrived in Paris in 1812 to coordinate the purchase of bullion for his London-based brother. He soon established De Rothschild Frères in 1817, transforming his operations into a cornerstone of French finance that bridged the volatile transition from the Napoleonic era to the mid-nineteenth century industrial expansion of the nation.

Banking and Industrial Influence

By 1823, the Parisian branch of the Rothschild family was the primary banker for the French government. Rothschild played a central role in financing the rapid development of mining and railway infrastructure, securing his status as a critical adviser to the political elite. He managed financial crises through the 1830 and 1848 revolutions, and successfully countered competitive pressure from Crédit Mobilier starting in 1852. Beyond core banking, he ventured into tea importation, gold refining, and viticulture, notably acquiring Château Lafite in 1868.

THE FREE TEST
How high is yours?

Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.

Take the IQ test →

Political and Social Standing

The Austrian Emperor Francis I granted the Rothschild brothers the hereditary title of Baron in 1822, the same year James was appointed consul-general of the Austrian Empire. He attained the rank of Grand Officer of the Legion of Honour following his work stabilizing government finances under King Louis Philippe. Though his influence diminished slightly during the reign of Napoleon III, he maintained the prestige of his house until his death in 1868.

Patronage and Residences

Rothschild and his wife, Betty, hosted influential figures such as Chopin, Delacroix, and Rossini, with the chef Antonin Carême managing their culinary affairs. His architectural legacy includes the 1838 purchase of the residence at 2 rue Saint-Florentin and the construction of the Château de Ferrières, designed by Joseph Paxton and completed in 1862. He was a dedicated collector of fine art, having initiated his acquisitions with the 1818 purchase of Greuze's La Laitière.

Fast facts

Questions readers ask

What was the scale of his funeral?

His funeral drew thousands, with 4,000 guests inside his residence and 6,000 in the courtyard, while unknown crowds lined the route to the cemetery.

Who did he marry?

He married his niece, Betty von Rothschild, in 1824 in Frankfurt.

Achievements

Compare with the greats

Bobby Fischer vs James Clerk MaxwellGregor Mendel vs Karl MarxGarry Kasparov vs Mark TwainAda Lovelace vs Terence Chi Shen Tao
See the IQ Rankings →All comparisons →

Child prodigies

Boris BeckerBoris BeckerWon Wimbledon at 17, the youngest men's Grand Slam champion everPriyanshi SomaniWon the Mental Calculation World Cup at age 11, beating adults…Greyson ChanceViral Lady Gaga Cover at 12 — Ellen DeGeneres Signed Him to Her…Tatum O'NealTatum O'NealWon an Academy Award at ten, the youngest competitive Oscar…
Child prodigies →

Play & come back tomorrow

Daily Genius Challenge · Guess the genius
British chemist whose X-ray image 'Photo 51' was key to revealing the double-helix structure of DNA.
Tap your answer ↓
Which Genius Are You? Free IQ Test