Jo Gwang-jo
After Kim Anro's fall, the crown prince Injong's maternal uncle Yoon Im and Queen Munjeong's brothers Yoon Won-ro and Yoon Won-hyung filled the power vacuum. (Yoon Im and Yoon Brothers were close relatives by that period's standards - Yoon Im's great-grandfather was older brother of Yoon Brothers' great-great-grandfather.) Many officials gathered around the two centers of power and developed into separate political factions. Yoon Im's faction became known as ‘Greater Yoon’ and the Yoon brothers' faction as ‘Lesser Yoon.’ By then, Jungjong promoted Sarim scholars again by recalling them from exile and reappointing to court positions to restrain Hungu faction's power. Many Sarim scholars joined the Greater Yoon since they had great hopes for the crown prince, who studied under Jo Gwang-jo and Yi Hwang and was greatly anticipated to become a benevolent ruler.