Complex sentence: The song was a particular favorite of the Prince of Wales (the future Edward VIII), who once asked singer Morton Downey to perform the song eleven times during a show at the Café de Paris in London.
Split into simpler sentences: The song was a particular favorite of the Prince of Wales (the future Edward VIII). In fact, he once asked singer Morton Downey to perform the song eleven times during a show at the Café de Paris in London.