Complex sentence: The "Travolta dress" (also known as the "John Travolta dress"), one of the most famous dresses once owned by Diana, Princess of Wales, was worn for the first time at a gala dinner at the White House in November 1985.
Split into simpler sentences: The "Travolta dress" (also known as the "John Travolta dress") is one of the most famous dresses once owned by Diana, Princess of Wales. It was worn for the first time at a gala dinner at the White House in November 1985.