Hagley Hall was the seat of Thomson's patron the Baron Lyttleton, and the poem's description of a sylvan dale is strikingly reminiscent of the Brandywine Valley.
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Also near the byway in the Wilmington area is the Delaware Art Museum, Delaware History Museum, Hagley Museum and Library, and Nemours Mansion and Gardens with the Brandywine River Museum and Longwood Gardens farther north in Pennsylvania.