Complex sentence: The King and Queen attended the Durbar in person and wore their Coronation robes, an unprecedented event in both Indian and Imperial history held with unprecedented pomp and glamour, and to this day remain the only British monarchs to visit India during the period of British rule.
Split into simpler sentences: The King and Queen attended the Durbar in person and wore their Coronation robes, an unprecedented event in both Indian and Imperial history held with unprecedented pomp and glamour. They were the only British monarchs to visit India during the period of British rule.