Kālidāsa
The most popular theory is that Kalidasa flourished during the reign of Chandragupta II, and therefore lived around 4th-5th century CE. Several Western scholars have supported this theory, since the days of William Jones and A. B. Keith. Many Indian scholars, such as Vasudev Vishnu Mirashi and Ram Gupta, also place Kalidasa in this period. According to this theory, his career might have extended to the reign of Kumaragupta I (r. 414 – 455 CE), and possibly, to that of Skandagupta (r. 455 – 467 CE).
Sripadaraja
Sripadaraya or Lakshminarayana Tirtha (c.1422-c.1480) was a Dvaita scholar, composer and the pontiff of the Madhvacharya mutt at Mulbagal. He is widely considered as the founder of Haridasa movement along with Narahari Tirtha. His songs and hymns, written under the nom-de-plume of "Ranga Vitthala", contain the distillation of Dvaita principles infused with mysticism and humanism. He is also credited with the invention of the "suladi" musical structure and composed 133 of them along with several "kirtanas". He was the advisor of Saluva Narasimha Deva Raya and mentored the young Vyasatirtha. He has also authored a commentary on Jayatirtha's "Nyaya Sudha" called "Vagvajra".