The Pictet family is a family from Geneva, Switzerland. Originally from the town of Neydens, Savoy (now Haute-Savoie, France), they joined the bourgeoisie of Geneva in 1474. Over the following centuries, the Pictet family played a significant role in the political, religious, scientific, military and economic life of Geneva and Switzerland.
Since the first half of the 17th century, the Pictet family has been divided into three distinct branches: the elder branch (now extinct), the middle branch and the youngest branch, with the latter the most numerous today.
The most illustrious members of the Pictet family include Charles Pictet de Rochemont (1755-1824), who negotiated the present-day borders of the canton of Geneva and the recognition of Switzerland's perpetual neutrality, as well as his brother Marc-Auguste Pictet (1752-1825), a great scientific and intellectual figure in whose honor the name Pictet was given to one of the Moon's craters. Amé Pictet (1857-1937), a chemist, gave his name to the Pictet-Spengler reaction, while Raoul Pictet (1846-1929) was the first to liquefy oxygen in 1878. Lucien Pictet (1864-1928), an engineer, gave half of his surname to the Pic-Pic automobiles and Jean (1914-2002), his son, was one of the architects of the four Geneva Conventions of 1949.
Over the centuries, many members of the family have served on the Small Council of Geneva or as State Councillors, including twelve syndics (mayors) under the old Republic of Geneva. The family includes many professors who have taught at the University of Geneva (formerly Academy of Geneva), particularly in theology, law, and natural sciences.
Today, the Pictet family is directly associated with the Pictet Group, one of the largest private banks in Switzerland, chiefly managed since 1841 by members of its youngest branch. Lastly, the family has a foundation dedicated to preserving the family archives, which can serve as a documentary base for researchers, exhibitions, or the publication of works dedicated to the history of the great Swiss families.
Origins The Pictet family's earliest known ancestors were farmers who owned five hectares of land in Neydens, starting in 1344. It is worth noting that the Pictet surname was originally written as Pitet or Pittet: the Pictet spelling appeared in the 15th century, with the 'c' used to mark the double 't'. While the Pictet spelling became permanently established within the family, the pronunciation without the 'c' remained widespread in Geneva for a long time and is still occasionally used., However, early sources attest to the fact that family members systematically signed themselves as 'Pictet' as early as the 16th century.
The first ancestor to make a significant mark on the family history is Pierre Pictet, who joined the bourgeoisie of Geneva on October 14, 1474, marking the beginning of the family's social ascent in the city. This distinguishes them from the Huguenot or Italian families who gained bourgeois status after the Reformation. The first urban generations of the family settled in the suburb of Saint-Gervais in the early 16th century, engaging in craft-related professions. In 1575, Ami Pictet (notary public), great-great-grandson of Pierre Pictet, contributed to this rise by becoming the first member of the Pictet family to be elected syndic (mayor) of the Republic of Geneva, marking the family's entry into Geneva's political sphere.
At the beginning of the 17th century, the family divided into three branches, each stemming from a descendant of Jaques Pictet (1576-1629): his son André (1609-1669) founded the elder branch (now extinct), Jérémie (1613-1669) founded the middle branch, and his youngest son Pierre (1626-1690) founded the youngest branch. Nevertheless, each branch has distinguished itself over the centuries in various fields, notably in politics, the military, economics, and religion. Over the centuries, the family remained established in the Geneva area, where it amassed substantial holdings, often through marriage alliances, mainly on the right bank of Lake Geneva and along the Rhône (notably in Pregny-Chambésy, Saconnex, Troinex and Sergy in the Pays de Gex).
Eldest branch The eldest branch of the family descends from the syndic André Pictet (1609-1669). Notable members include political figures, as well as a leading religious figure, Bénédict Pictet. This branch has been extinct since 1876. Bénédict Pictet (1655-1724), son of André Pictet, the founder of the eldest branch, was an important Genevan pastor and theologian. Starting in 1686, he taught theology at the Academy of Geneva, where he served as rector twice. A major figure in Geneva Protestantism, he led several civil and ecclesiastical institutions, and was a member of the Berlin Academy of Sciences. An advocate of Reformed orthodoxy open to Cartesian philosophy, he played a central role in Geneva's liturgical reforms. A prolific author, he published widely circulated theological and moral treatises, as well as sermons and hymns. Catherine Pictet (1726-1795), daughter of Councillor and Secretary of State Isaac Pictet (1693-1769), and close friend of the mother of Albert Gallatin (1761-1849), whom she raised when he became an orphan. Emigrating to the United States at the age of 18, Gallatin embarked on a brilliant political, diplomatic, and banking career that culminated in his appointment as Secretary of the Treasury under President Thomas Jefferson. Albert wrote in 1844, "You are not unaware of the great obligations I have towards Catherine Pictet, your father's aunt, who raised us both (..)." I owe what I am worth and the success of the career I've been thrust into to her.".
François Pierre Pictet (1728-1798), known as 'the Giant', grandson of Bénédict, studied law in Geneva before becoming a lawyer in 1752. He became close to Voltaire during the years the latter spent in the Geneva region. In 1761, he settled in Saint Petersburg, where he joined the circle of Catherine II. Through his connections, he initiated correspondence between the philosopher and the empress. His path led him to become an informant for the French Embassy in Russia and to recruit settlers to populate Kazan and Saratov. Involved in a smuggling affair, he was forced to leave Russia in 1776 and settled in Paris. An anti-revolutionary, he emigrated to London, then Reading and Bern, before returning to Geneva, where he died.
Middle branch Also known as the 'second branch', it descends from Jérémie Pictet (1613-1669). This branch has provided the family with some of its most notable political, diplomatic, and scientific figures. This branch has experienced a gradual demographic decline since the 19th century, but still exists today.
Jacques Pictet-Thellusson (1705-1786) pursued a military career as an officer in the service of the Kingdom of Piedmont-Sardinia, where he achieved the rank of lieutenant-general. He later represented King Charles Emmanuel III, who appointed him as a count in 1756. Heir to the Reposoir estate in Pregny-Chambésy, he had a mansion built there, which remains the property of the family to this day. He had three sons: Isaac, Louis, and Marc-Louis. Charlotte Pictet (1734-1766) lived in the property her father built near the 'Délices', the estate where the famous French philosopher resided, and with whom she formed a friendship. Disturbed by this proximity and to preserve his peace, Voltaire planted chestnut trees between the properties, which he dubbed "cache-Pictet" (the Pictet screen). The expression gained unexpected popularity thanks to Stendhal, who cited it in his Memories of a tourist, published in 1854. In 1757, Charlotte married Samuel Constant from Vaud, the future uncle of the writer and politician Benjamin Constant. Having closely followed the preparations, Voltaire wrote about the wedding: "We are marrying one of General Constant's sons to the beautiful Miss Pictet and uniting Lausanne with Geneva".
Isaac Pictet de Pregny (1746-1823), eldest son of Jacques Pictet-Thellusson, turned to politics and diplomacy at an early age, after studying at the Academy of Geneva. As a correspondent for foreign powers (notably the King of Sardinia) and close to European diplomatic circles, he quickly rose to the highest offices. The Revolution of 1792 abruptly stripped him of his positions, his wealth, and his wife, forcing him into a prolonged retirement. He dedicated these years to managing and enhancing his Reposoir estate, as well as to historical and genealogical research. During the Restoration, he regained a central role in Geneva's political life and died while serving as syndic. From his first marriage to Lucrèce Lullin, Isaac Pictet had three children: Gabriel, who died in infancy, Jacques (known as James), and Louis, who survived him and became his heir; his second marriage to Julie-Madeleine Bertrand was childless.
Louis Pictet, known as "Pictet of Bengal" (1747-1823), the second son of Jacques Pictet-Thellusson, trained in commerce in England before entering the service of the British East India Company. Sent to Bengal, he stayed there for nearly nine years, holding administrative positions and managing the trading post at Cossimbazar, which enabled him to amass a considerable fortune. Returning to Europe for health reasons, he settled in Geneva, then in the Vaud region during the French Revolution.
Marc-Auguste Pictet (1752-1825), son of Charles Pictet, was one of Geneva's leading scientific and intellectual figures. An astronomer, physicist, naturalist, and cartographer, he taught physics at the Academy of Geneva for nearly forty years. A colleague and friend of Horace-Bénédict de Saussure, he made a vital contribution to alpine cartography and the beginnings of modern meteorology. Co-founder and Scientific Director of the Geneva-based periodical Bibliothèque Britannique, he played a major role in bridging the gap between English science and French-speaking Europe., A dignitary of the Napoleonic Empire, while remaining deeply attached to Geneva, he presided over the Société des Arts for many years and established a reputation as a scholar, educator, and mediator of international influence.
Charles Pictet de Rochemont (1755–1824), son of Charles Pictet and brother of Marc-Auguste, is a major figure in Geneva and Swiss history, considered one of the founding fathers of the nation. Having trained for a military career, he found his true calling as a publicist and agronomist. Settling in Lancy, he became a pioneer in merino breeding, the development of modern agriculture, and the wool industry, while disseminating British innovations widely through his publications, notably in the Bibliothèque Britannique. A latecomer to public life, he played a decisive role during the Restoration, representing Geneva and then the Swiss Confederation at the congresses of Paris and Vienna. His diplomatic efforts ensured Geneva's integration into Switzerland and international recognition of Switzerland's perpetual neutrality (1815). He also negotiated the Treaty of Turin (1816), which finalized the cession of the Sardinian municipalities to the canton. Adélaïde Sara Pictet de Rochemont (1767-1830), Charles's wife, joined her name to his according to the Genevan custom of the time. In addition to managing the model farm they owned in Lancy, where the latest agricultural innovations were used, she and her husband established a school for local children. A park is now dedicated to her in the Pont-Rouge district of Lancy.,