Answer : 1. "Samudragupta "
Explanation :

Harisena, the author of the famous "Prayag Prashasti," adorned the court of Samudragupta, who was a prominent ruler of the Gupta Empire in ancient India. Samudragupta ruled from around 335 to 375 CE and is often considered one of the greatest rulers of the Gupta dynasty. The "Prayag Prashasti" is an inscription that glorifies Samudragupta's achievements and military conquests, providing valuable historical insights into the Gupta period.