Rajaraja Chola II succeeded his father Kulothunga Chola II to the Chola throne in 1150. He was made his heir apparent and coregent in 1146 and so the inscriptions of Rajaraja II count his reign from 1146. Rajaraja's reign began to show signs of the coming end of the great dynasty.
Read more about Rajaraja Chola II: Growing Weakness, Death and Succession, Socio-Religious Achievements, Extent of The Empire and Summary of The Rule and Legacy of Raja Raja-II