The famous Chinese Buddhist traveler Hiuen Tsang (Xuanzang) visited India during the reign of which monarch?

Hiuen Tsang, the renowned Chinese Buddhist monk and traveler, journeyed to India in the $7^{\text{th}}$ century CE. He visited during the prosperous reign of King Harshavardhana of the Vardhana dynasty to secure authentic Buddhist scripts and study at Nalanda University.