Complex sentence: According to Ricketts family tradition, Gad Seward built the mansion; while it was known as "Ricketts Folly" for its isolated location in the wilderness, the official name was the Stone House.
Split into simpler sentences: According to Ricketts family tradition, Gad Seward built the mansion. While it was known as "Ricketts Folly" for its isolated location in the wilderness, the official name was the Stone House.