Complex sentence: One such recorded event was in 1600 when King Yajati is reported to have conducted this ritual after he had retrieved the images from Sonpur where they had been buried during an attack by Muslim invaders.
Split into simpler sentences: One such recorded event was in 1600 when King Yajati had conducted this ritual after he had retrieved the images from Sonpur. Where they had been buried during an attack by Muslim invaders.