Nemours is the grandest residence ever constructed in Delaware, fully one acre under a roof . Its gardens are still the finest example in North America of a formal, French garden. The grounds cover 222 acres and the main vista was inspired by Le Petit Trianon at Versailles. The estate was named after the town in France that Alfred I. duPont’s great, great grandfather, Pierre Samuel duPont, represented as a member of the Estates General in 1789. Nemours Mansion & Gardens recently reopened its gates after an extensive $39,000,000 renovation. This exquisite estate is a place where a visitor might believe he or she magically just stepped into Europe.