Neuflize was born in Paris on 21 August 1850 into the prominent minority Protestant establishment of France. He was the eldest son of Jean André Poupart de Neuflize, 3rd Baron of Neuflize, and his wife, Marie Louise André. His great-grandfather, Jean Abraham Poupart de Neuflize, built the Château de Montvillers in 1770 in Bazeilles in the Grand Est region of northern France. He was educated at the Lycée Saint-Louis, followed by the Lycée Bonaparte.
Career
Neuflize, a banker, succeeded his father as the head of the Banque de Neuflize et Cie in Paris, which had been founded in 1710 by his great-grandfather Jean Abraham Poupart de Neuflize, a draper from Sedan, Ardennes, and traced its lineage to seventeenth century Genoa.. His family's bank was among the most prominent banking houses of France, which included the Hottinguer, :fr:Banque Mallet|Mallet, Rothschilds and :fr:Charles Vernes|Vernes banks. He was succeeded in the bank by his second son, Jacques, who was the representative of the Banque de French in America during World War I. From 1902 until his death in 1928, he was a Regent of Banque de France, the central bank of France, and was serving as Dean of Regents at the time of his death. In 1904, he helped established the French investment bankBanque de l'Union Parisienne. He was also vice president of Paris, Lyons & Marseilles Railway, chairman of the board of directors of the Ottoman Bank, and president of the Évian Mineral Water Society.
Olympic career
Neuflize competed in the equestrian mail coach event at the 1900 Summer Olympics, winning the bronze medal.
Personal life
On 28 April 1874, Neuflize was married to Madeleine Dolfuss-Davilliers. She was born in Soisy-sous-Montmorency and was a daughter of Mathieu Dollfus and Laure Cécile Davillier, and granddaughter of industrialist Jean Dollfus. In Paris, they lived at 7 Rue Alfred-de-Vigny, a Hôtel particulier in the 8th arrondissement, Together, they were the parents of three children:
Jacques Poupart de Neuflize, a banker who married Alixe Coche de la Ferté, a daughter of Alexandre Coche de la Ferté. After her death, he married Antoinette Meyer-Borel.
Through his eldest son, André, he was a grandfather of Jacqueline de Neuflize, who married Baron Jean de Watteville-Berckheim of Paris in 1937, Marie Madeleine de Neuflize, who married the Baron Christian de Turckheim, and Genevieve de Neuflize, who married Count Costa de Beauregard, the son of Ferdinand Costa, Marquis de Beauregard. Through his daughter, the Countess of Bessborough, he was a grandfather of four, including: Frederick Edward Neuflize Ponsonby, 10th Earl of Bessborough, the Hon. Desmond Neuflize Ponsonby, who died young, Lady Moyra Ponsonby, and Lt. Hon. George St Lawrence Neuflize Ponsonby.
