Complex sentence: The ship was originally named "Nordic Empress" and was the final Royal Caribbean ship whose name did not end with "of the Seas" until the name was changed to match the rest of the fleet following an extensive rebuilding that ended on 8 May 2004.
Split into simpler sentences: The ship was originally named "Nordic Empress" and was the final Royal Caribbean ship whose name did not end with "of the Seas". The name was changed to match the rest of the fleet following an extensive rebuilding that ended on 8 May 2004.