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).
Kālidāsa
Scholars have speculated that Kalidasa may have lived near the Himalayas, in the vicinity of Ujjain, and in Kalinga. This hypothesis is based on Kalidasa's detailed description of the Himalayas in his "Kumārasambhava", the display of his love for Ujjain in "Meghadūta", and his highly eulogistic descriptions of Kalingan emperor Hemāngada in "Raghuvaṃśa" (sixth "sarga").