Srila Locana Dasa Thakura appeared in this world in 1520 A.D.,thirty-four years after the appearance of Sri Caitanya Mahaprabhu. Locana Dasa wrote a biography on Lord Caitanya, entitled Sri Caitanya Mangala, and he wrote many devotional songs. Locana Dasa Thakura wrote Caitanya Mangala which tells many pastimes of Lord Caitanya not revealed by Vrndavana Dasa Thakura or Krishna Dasa Kaviraja. Locana Dasa Thakura also wrote many songs praising Sri Caitanya Mahaprabhu, Sri Nityananda Prabhu, and Gauridasa Pandit.
http://gaudiyahistory.com/sri-locana-dasa-thakura/
http://gaudiyahistory.com/sri-locana-dasa-thakura/