Alfred Irénée du Pont was an American industrialist, financier, philanthropist and a member of the influential Du Pont family.

The Nemours Estate is a 200-acre (81 ha) country estate with jardin à la française formal gardens and a French neoclassical mansion in Wilmington, Delaware, United States. Built to resemble a French château, its 105 rooms on four floors occupy nearly 47,000 sq ft (4,400 m2). It shares the grounds at 1600 Rockland Road with the Nemours Children's Hospital, Delaware, and both are owned by the Nemours Foundation.