Manikkavasagar

Poet and Mystic from Tamil Nadu. His Tiruvasagam is the eighth part of the Tirumurai.

Read about Manikkavasagar here
https://storibuzz.in/the-story-of-manickavasagar/

and the Tiruvasagam here
https://www.projectmadurai.org/pm_etexts/pdf/pm0659.pdf