Complex sentence: The Blount Mansion, located at 200 West Hill Avenue in downtown Knoxville, Tennessee, was the home of the first and only territorial governor of the Southwest Territory, William Blount.
Split into simpler sentences: The Blount Mansion is located at 200 West Hill Avenue in downtown Knoxville, Tennessee. This was the home of the first and only territorial governor of the Southwest Territory, William Blount.