Question: Who is Athirajendra Chola's paternal grandfather?
Sentence (from "Virarajendra Chola"): Virarajendra Chola (r.1063–1070 CE) is considered to be one of the most underrated Chola kings, mainly because a major part of his life was spent as a subordinate of his two elder brothers Rajadhiraja Chola I and Rajendra Chola II, who along with Virarajendra Chola himself were the illustrious sons of their Chakravarti(Emperor) father, Rajendra Chola I.
Relevant evidence: Yes