CC Ādi 10.72
vyākaraṇe dui śiṣya — dui mahāśaya
The thirty-third and thirty-fourth branches were the two students of Caitanya Mahāprabhu named Puruṣottama and Sañjaya, who were stalwart students in grammar. They were very great personalities.
These two students were inhabitants of Navadvīpa and were the Lord’s first companions in the saṅkīrtana movement. According to the Caitanya-bhāgavata, Puruṣottama Sañjaya was the son of Mukunda Sañjaya, but the author of Śrī Caitanya-caritāmṛta has clarified that Puruṣottama and Sañjaya were two people, not one.