For three generations the Eastern Chalukyan princes had married in to the Imperial Chola family and they came to feel that they belonged as much to the Chola family as to the Eastern Chalukyan. Further Rajendra Chalukya of Vengi, according to "Kalingaltuparani", an epic written in praise of Kulothunga's invasion of Kalinga, 'spent his childhood days in Gangaikonda Cholapuram and was a familiar favourite to the princes and the people of the Chola country'. It is under these circumstances, Rajendra Chalukya moved into the 'Political vacuum created by the death of Adhirajendra' and established himself on the Chola throne as Kulothunga Chola I. Since then Kulottunga I and his descendants came to be known as the Chalukya-Cholas in history.