Which Bhakti saint preached the concept of Vishishtadvaita?

Which Bhakti saint preached the concept of Vishishtadvaita? Correct Answer Ramanuja

Ramanuja, the main proponent of Vishishtadvaita philosophy contends that the Prasthanatrayi ("The three courses"), namely the Upanishads, the Bhagavad Gita, and the Brahma Sutras are to be interpreted in a way that shows this unity in diversity, for any other way would violate their consistency. Vedanta Desika defines Vishishtadvaita using the statement, Asesha Chit-Achit Prakaaram Brahmaikameva Tatvam : Brahman, as qualified by the sentient and insentient modes (or attributes), is the only reality.

Related Questions

Conventions are customs which are more practiced than preached; morals are customs which are more preached than practiced. They are duties which we require of our neighbors. Morals, etymology and history, derive from customs which are considered essential to the health and preservation of the group.
Which of the following Bhakti Cult preached under the Pallavas, Pandyas and Cholas?
Which of the following dynasties under the Saivaite Nayanmars and Vashnavaite Alwars preached the Bhakti cult?
The Saivaite Nayanmars and Vashanavaite Alwar preached the Bhakti Cult under which of the following rulers?
The concept of Sagunabrahmana was the outcome of which concept of Bhakti Movement?