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).
Haridasa Thakur
It is believed that Haridasa was buried on the ocean shore by Caitanya himself. Dr. A. N. Chatterjee makes a point in his doctoral thesis entitled "Chaitanya's impact on medieval Indian society" that death of Haridasa Thakura is one of the most important incidents which deserve mention when dealing with the last few years of Caitanya Mahaprabhus life. Haridasa dies after most of other Gaudiya Vaishnavas depart home from Puri, he collapses one day while singing Krishnas name. He is then placing a foot of Chaitanya Mahaprabhu on his chest and dies crying out "Sri Krishna Chaitanya".
Even when mahatmas, great souls, do appear in human society, they are often not appreciated or understood. Illustrating Gaudiya Vaishnava perspective on it Prabhupada writes: