Harsha belonged to the Vardhan dynasty.

Explanation:

The Vardhan dynasty was a powerful Indian dynasty that ruled over the northern parts of India during the 6th and 7th centuries. Harsha, also known as Harsha Vardhana or Harshavardhana, was a prominent ruler of this dynasty.

Harsha Vardhana ascended the throne in 606 AD and ruled over the region of Thanesar in present-day Haryana. He later expanded his kingdom to include a significant portion of northern India, including areas such as Punjab, Rajasthan, Uttar Pradesh, Bihar, and parts of Bengal.

Key Points:
- Harsha Vardhana was the son of Prabhakarvardhana, the ruler of the Vardhan dynasty.
- He is best known for his military conquests and his patronage of art, literature, and religion.
- Harsha was a patron of Buddhism and is credited with the establishment of several monasteries and the promotion of Buddhist learning.
- He convened the famous Buddhist council at Kanauj, which was attended by scholars from across India.
- Harsha's reign is also known for its cultural achievements. He was a great patron of the arts and literature, and his court was adorned with poets, scholars, and musicians.
- The Chinese traveler Xuanzang visited Harsha's court and wrote extensively about the grandeur and magnificence of his kingdom.
- Harsha's reign came to an end with his death in 647 AD. After his demise, the Vardhan dynasty declined, and the region was subsequently ruled by various other dynasties.

In conclusion, Harsha belonged to the Vardhan dynasty, which was a prominent ruling dynasty in northern India during the 6th and 7th centuries. He was a significant ruler known for his military conquests, patronage of Buddhism, and promotion of art and literature.