What is "madhavdev"

Madhavdev (; 1489–1596) (Pron: ˈʃrɪ ˈʃrɪ ˈmɑ:dəbˌdeɪv) is an important preceptor of the Ekasarana Dharma known for his loyalty to his guru, Srimanta Sankardev as well as his artistic brilliance. Initially a sakta worshipper, he was converted to Ekasarana Dharma by the Sankardev and became his most prominent disciple. He became the religious as well as artistic successor of Sankardeva after the later's death in 1568. He is known particularly for his book of hymns, the Naam Ghoxa, as well as a large selection of songs called Borgeets.