Answer
The original Gaudiya Vaishnavism was taught in the 16th century by Chaitanya Mahaprabhu, a Bengali Hindu spiritual leader. He is considered to be the founder of the Gaudiya Vaishnava tradition, which is a branch of Vaishnavism, a Hindu tradition that worships Vishnu or one of his avatars, as the Supreme Being. Chaitanya Mahaprabhu taught that Krishna is the Supreme Being and that all souls are inherently one with Krishna.