Some answers from questions are extracted from the auothr's perspective here
Srivaishnavism school is divided into Thenkalai and Vadakalai. Thenkalai followers believe that Ramanuja was succeeded by Embar, who was also his cousin brother. This website is created to throw light on the life and teachings of Embar. Embar's desciple was Parashara bhattar (son of Kuresha).