Visnu Puri was previously known as Visnu dasa. He was a learned brahmana who belonged to the Vaisnava school of Madhva and was a disciple of Jayadharma Tirtha. He first led his life as a householder with wife and children, but when the temper of his wife became too much for him, he left home and took the dress of a sannyasi. Everyone tried to pacify him but he would not return. He wandered and settled in Mithila at the shrine of Lord Siva (which is also known as Siva Puri). The Tirtha pandits say that in a dream Lord Siva told him to resume family life, so he returned and took a second wife. In the dream Lord Siva also gave him the Visnu mantra, so at Siva Puri it is suggested that this is when he added Puri to his name, to remember that holy place, as there is no mention of receiving the name from another source.
krpa makaranda-bindu pronmilita-
sri visnu-puri grathita-sri
sri bhaktiratnavali kantimala samapata