Complex sentence: The Mongol Empire launched several invasions into the Indian subcontinent from 1221 to 1327, with many of the later raids made by the unruly Qaraunas of Mongol origin.
Split into simpler sentences: The Mongol Empire launched several invasions into the Indian subcontinent from 1221 to 1327. Some of those later raids were made by the unruly Qaraunas of Mongol origin.