Question: Who is the paternal grandfather of King Ding Of Zhou?

Knowledge 1: King Ding of Zhou
King Ding of Zhou , or King Ting of Chou, was the twenty-first king of the Chinese Zhou Dynasty and the ninth of Eastern Zhou.He was a son of King Qing of Zhou and brother of King Kuang of Zhou.He sent an official named Wangsun Man to present gifts to the Chu army.He met Prince Zhuang. [SEP] Knowledge 2: King Qing of Zhou
King Qing of Zhou , or King Ch’ing of Chou, was the nineteenth king of the Chinese Zhou Dynasty and the seventh of Eastern Zhou.He was fathered by King Xiang of Zhou as Prince Rénchén.He became King Qing in 618 BC, after his father died.King Qing had two sons, Princes Bān and Yú.After King Qing died in 613 BC, Bān become King Kuang.
Knowledge 1: King Ding of Zhou
King Ding of Zhou , or King Ting of Chou, was the twenty-first king of the Chinese Zhou Dynasty and the ninth of Eastern Zhou.He was a son of King Qing of Zhou and brother of King Kuang of Zhou.He sent an official named Wangsun Man to present gifts to the Chu army.He met Prince Zhuang. [SEP] Knowledge 2: King Kuang of Zhou
King Kuang of Zhou, or King K’uang of Chou, was the twentieth king of the Chinese Zhou Dynasty and the eighth of Eastern Zhou.He was born as Prince Bān.His surname was Jī. King Kuang's father was King Qing of Zhou.Kuang was succeeded by his brother King Ding of Zhou.
Knowledge 1: King Ding of Zhou
King Ding of Zhou , or King Ting of Chou, was the twenty-first king of the Chinese Zhou Dynasty and the ninth of Eastern Zhou.He was a son of King Qing of Zhou and brother of King Kuang of Zhou.He sent an official named Wangsun Man to present gifts to the Chu army.He met Prince Zhuang. [SEP] Knowledge 2: King Nan of Zhou
King Nan of Zhou (?–256 BC), born Ji Yan and less commonly known as King Yin of Zhou, was the 37th and last king of the Chinese Zhou dynasty, the son of King Shenjing of Zhou and grandson of King Xian of Zhou.He was king for fifty-nine years, the longest in the Zhou Dynasty and all of pre-imperial China (in terms of the reign length followed by King Mu of Zhou).By the time of King Nan's reign, the kings of Zhou had lost almost all political and military power, as even their remaining crown land was split into two states or factions, led by rival feudal lords: West Zhou, where the capital Wangcheng was located, and East Zhou, centred at Chengzhou and Kung.Therefore, Nan lacked any personal territory and was effectively under the control of the local feudal lords, essentially relying on their charity.However, Nan's symbolic and ritual power remains disputed.On one side, the Chinese states largely ignored the king's activities and adopted royal titles and rituals for themselves, while the dynasty's fall generally received meagre contemporary coverage and attention.This led to the assumption that Nan no longer had any symbolic power or semblance of royal authority left.On the other side, recent epigraphic discoveries and some accounts in the Records of the Grand Historian and Zhan Guo Ce suggest that until his death, Nan was still respected as the Son of Heaven.Either way, the last king of Zhou managed to preserve his weakened dynasty through diplomacy and conspiracies for fifty-nine years until his deposition by Qin and death in 256 BC.

Answer: king Xiang of Zhou