ロスチャイルド家
He was a scion of the English branch of the Rothschild family, being the son of James Edouard de Rothschild (1844–1881) and Thérèse von Rothschild (1847–1931). His paternal grandfather was Nathaniel de Rothschild, originally from London, the founder of the French wine-making branch of the Rothschild family.