Complex sentence: However, after the decline of the Guptas, the most notable patron of the Mahavihara was Harsha, the 7th-century emperor of Kannauj, who was a converted Buddhist and considered himself a servant of the monks of Nalanda.
Split into simpler sentences: However, after the decline of the Guptas, the most notable patron of the Mahavihara was Harsha, the 7th-century emperor of Kannauj. Harsha was a converted Buddhist and considered himself a servant of the monks of Nalanda.