By Satyaraja Dasa for Sri Pancha-tattva: The Five Features of God on 18 Feb 2008
Curiously, there is no authoritative biography of Nityananda Prabhu; and while Rupa, Jiva, and Raghunatha [Gosvamis] do not even mention him once in their collective writings, Sanatana Gosvami refers to him only briefly in the invocation of his Vaisnava-tosani. Nonetheless, the world is fortunate that Mahaprabhu's biographers have devoted large sections of their work to Nityananda's life, which can be pieced together from this massive literature, and also from later medieval Vaisnava texts, such as Bhakti-ratnakara and Prema-vilasa.