"[3] After attending the Lycée Louis-le-Grand in Paris, he interned in the maternity ward of the municipal Hôpital de la Charité working under "some of the most famous physicians and surgeons in France."

"[2] When he was unable to get it staged through a manager, "he produced it at a theatre which he built at his own expense in Paris; and then it made so great a hit there that it had long runs first on the banks of the Seine and then in London, after being cleverly translated into English.

[2] He published three volumes, each 800 pages, on mixed and artificial lactation, entitled Bibliographia Lactaria[6] Upon the German invasion of France in 1940, Rothschild fled to Brazil.

Under the 1942 anti-semitic laws of Vichy France,[7] Rothschild's extensive real estate and art holdings were confiscated and his French citizenship was revoked.

[2] He was awarded the Cross of the Legion of Honor for "his philanthropic work" and was later elevated to Officer of the same Order for "his invaluable services during the great war".

[2] In 1895, he married Mathilde Sophie Henriette von Weissweiller (1872–1926)[11] at the Grand Synagogue of Paris in the Rue de la Victoire.

[18] Baron de Rothschild died on 12 October 1947 at his estate, Castel Beau Cèdre in Jouxtens-Mézery, Vaud, Switzerland.

[21] Towards the end of the War, Rothschild acquired two large lots in Paris that contained the Château de la Muette.

[22] During the Liberation of Paris in August 1944, the château was captured after a brief gunfight by the British '30 Assault Unit' keen on gathering vital intelligence.

[23] In November 1942, Henri and his son James [fr] 1,800 acre property in Vaux de Cernay was expropriated under the anti-semitic laws of Vichy France.