An article by Vokya D, added on May 04, 2026 6 min. reading
Just a stone's throw from Paris and Charles de Gaulle Airport, the village of Gressy hides an unexpected heritage. Nestled on the banks of the Ourcq Canal, this small village in Seine-et-Marne was once home to one of the greatest chemists of the Enlightenment, Pierre-Joseph Macquer, at his Clairefontaine estate. A timeless escape, blending history, nature, and serenity.
Gressy, a name that comes from the Latin "place of grace"
The name Gressy comes from Latin gratiacum, that is to say "place of grace" ou "Nice place"You don't have to look far to understand why: the Beuvronne, a tributary of the Marne, crosses the village from north to south, while the Ourcq canal borders the village to the south and offers a pleasant setting for walking or cycling.
The historical period of the commune of Gressy begins in 1180. Raoul de Gressy, minor lord of this place, founded the church dedicated to Saint Denis and installed two Augustinian monks there coming from the Chaage Abbey in Meaux. The church still houses the enigmatic tombstone of Pierre de Gressy, whose 14th-century Gothic script evokes the tomb of a crusader returning from the Holy Land.
The Clairefontaine estate: a residence inspired by Le Nôtre
The history of the estate Clairefontaine dates back to the 17th centuryRobert de Frémont, whose family resided in Gressy until the 18th century, had a large bourgeois house whose name "Clairefontaine" endures in the memory of the inhabitants. He had a park designed there, trees planted, and two "canals" dug which, according to some, were inspired by Le Nôtre's artistic techniques. Unfortunately, it is a private property and not open to the general public.
This elegant estate would become, a few decades later, the working sanctuary of an extraordinary man of science.
Pierre-Joseph Macquer: when an 18th-century genius conducted his experiments in Gressy
Pierre-Joseph Macquer, born in Paris on October 9, 1718, is a French physician and chemistProfessor of chemistry and pharmacy at the Jardin des Plantes in Paris and member of the Academy of Sciences, he was one of the major scientific figures of the Enlightenment.
It was at his Clairefontaine estate in Gressy, where he had set up his laboratory and a botanical garden, that he conducted his first scientific experiments. Between 1749 and 1752His research on dyes at the Royal Gobelins Manufactory focused on Prussian blue, which led him to discover the potassium ferrocyanide (see image), and on cochinealA delightful anecdote even recounts that his experiments on the The mordanting of the silk turned the waters of the Beuvronne intensely redprovoking suspicion among the residents of Gressy.
His work opened the doors to the Royal Porcelain Manufactory of Sèvres for him. Tasked by the king with unlocking the secret of hard-paste porcelain, jealously guarded by Chinese and Saxon manufacturersIt was thanks to the discovery of a deposit of very pure kaolin in Saint-Yrieix near Limoges that Macquer was able to introduce the manufacture of hard porcelain in Sèvres in 1768.
The Clairefontaine estate, that Macquer called it his "Élysée", had been bought in 1754 by Philippe Antoine Macquer. It was in Gressy, where he stayed half the year, where he conceived and wrote most of his scientific works and writings. Some figures from the world of science, such as Baumé, Cadet, Lavoisier and Tillet, came to visit him. This village in Seine-et-Marne was therefore, for decades, a true intellectual hub where the greatest scientific minds of the time gathered.
His works have long been considered reference texts, his Dictionary of Chemistry It was notably the first work to present chemical concepts in alphabetical order. He died on February 15, 1784. His last wish was that "his body be opened for the advancement of science."
Macquer Park and the living legacy of the chemist
The memory of Pierre-Joseph Macquer is very much alive in Gressy today. In 1975, a Macquer museum (now closed) was founded with the help of municipal and departmental subsidies. The village also honors its illustrious resident through Macquer Park, a green space popular with families, located just behind the Manoir de Gressy.
The Ourcq Canal: a stroll and serenity on the outskirts of Paris
The Ourcq Canal together with the Saint-Martin canal, the Saint-Denis canal and the La Villette basin, it forms what is known as the Paris Basin. It is at Gressy that the the canal crosses the territory of Greater Roissy, an opportunity to enjoy a real breath of fresh air away from the hustle and bustle of the capital.
The Manoir de Gressy is the ideal starting point for a night before taking the cycle paths that run along the Ourcq canal. The walk from Gressy to Claye-Souilly walking along the Beuvronne is particularly recommended. A stage of the Scandibérique?
Where to sleep and eat in Gressy?
The Gressy Manor occupies a old 17th century farmhouse In the heart of the village, in a verdant setting on the banks of the Ourcq Canal. Offering high-end services in a warm atmosphere, it includes 85 spacious and comfortable roomsIt is also a great place to stop for a gourmet meal at the gastronomic restaurant whose menu changes with the seasons.
Practical information for getting to Gressy
By car from Paris Allow approximately 35 to 40 minutes via the A104 or the N2. Gressy is located about ten kilometers from Paris-Charles-de-Gaulle airport.
From CDG airport The Manoir de Gressy is just 10 minutes by car from Paris-Charles-de-Gaulle airport. An ideal option for a stopover before or after a flight, or for a stay exploring the region. Booking.com
By train and RER The Mitry-Claye RER B station, located a 5-minute drive from Gressy, connects you directly to the heart of Paris in less than 40 minutes. From Gare du Nord, take the Transilien H towards Persan-Beaumont or Luzarches, get off at Ézanville-Écouen station, then reach Gressy by taxi or bicycle. Manoirdegressy
Address 📍 Gressy – 77410 Seine-et-Marne 🌐 gressy.fr
The Manoir de Gressy (4-star hotel) 📍 2, Allée de Clairefontaine – 77410 Gressy 🌐 manoirdegressy.com
