Emperor Zhongzong of Tang
Emperor Zhongzong of Tang (26 November 656 – 3 July 710), personal name Li Xian, and at other times Li Zhe or Wu Xian, was the fourth Emperor of the Tang dynasty of China, ruling briefly in 684 and again from 705 to 710.
During the first period, he did not rule, and the entire government was in the hands of his mother, Empress Wu Zetian.
In the second period, most of the government was in the hands of his beloved wife Empress Wei).
Emperor Zhongzong was the son of Emperor Gaozong of Tang and Empress Wu (later known as Wu Zetian).
He succeeded his father in 684.
His mother, however, deposed him less than two months later in favor of his younger brother Emperor Ruizong.
The former emperor, demoted to a princely rank, was sent in exile in the provinces and placed under house arrest.
Six years later, Emperor Ruizong in turn relinquished the throne to his mother and Empress Dowager Wu officially proclaimed herself empress regnant, while Emperor Ruizong was made crown prince.
By 698 the court was caught in the middle of a bitter power struggle.
In an attempt to secure her prominence, Empress Wu liberated the former emperor from his 14 years of seclusion and recalled him to the capital in April 698.
He was reinstated as crown prince in October 698, taking the place of his brother.
On 20 February 705, a palace coup deposed Wu Zetian and Emperor Zhongzong was restored as emperor three days later.
Emperor Zhongzong reigned for five years but was a rather weak and easily influenced ruler.
Real power was in the hands of his empress consort, Empress Wei and her lover Wu Sansi
(Wu Zetian's nephew).
In 710, Emperor Zhongzong died, allegedly poisoned by Empress Wei, who then installed his son, Li Chongmao, as Emperor Shang.
Empress Wei, who had failed to install her daughter Li Guo'er, the Princess Anle, as heir to Emperor Zhongzong, thought that Li Chongmao, born of Zhongzong and a concubine and who was only 16 years old, would be easy to control and allow her to preserve her power.
The scheme failed, however, when Princess Taiping, the sister of Emperor Zhongzong, launched a coup two weeks later with her nephew Li Longji (later Emperor Xuanzong), son of the abdicated Emperor Ruizong, and overthrew Empress Wei and the young emperor.
Emperor Ruizong, the father of Li Longji and the older brother of Princess Taiping, was restored as emperor.
Zhao Shoushan
Zhao Shoushan( 12 November 1894 – 20 June 1965) was a KMT general and later Chinese Communist Party politician.
He is the grandfather of Zhao Leji.
Prince Yide
Li Chongrun (682 – October 8, 701), né Li Chongzhao , formally Crown Prince Yide , was an imperial prince of the Tang Dynasty and Wu Zetian's Zhou Dynasty.
He was the only son of Emperor Zhongzong
(Li Zhe/Li Xian) and Emperor Zhongzong's second wife Empress Wei.
In 701, he offended his grandmother Wu Zetian by discussing Wu Zetian's lovers Zhang Yizhi and Zhang Changzong with his sister Li Xianhui the Lady Yongtai and her husband Wu Yanji
(武延基)
the Prince of Wei, and he, along with Li Xianhui and Wu Yanji, were forced to commit suicide.
He was posthumously honored as crown prince after his father Emperor Zhongzong was restored to the throne in 705 and in 706, Emperor Zhongzong provided Li Chongrun with an honorable burial by interring his remains at the Qianling Mausoleum.
Henry Krause
Henry J." Red" Krause, Jr.( August 28, 1913 – February 20, 1987) was an American football offensive lineman in the National Football League for the Brooklyn Dodgers and the Washington Redskins.
He played college football at St. Louis University.
He is the grandfather of Jennifer Krause
He is the great grandfather of Payton Hoeing
Fred Le Deux
Frederick" Fred" Le Deux( born 4 December 1934) was an Australian rules footballer who played with Geelong in the Victorian Football League( VFL).
He is the grandfather of Tom Hawkins.
Kaya Alp
Kaya Alp was, according to Ottoman tradition, the son of Kızıl Buğa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertuğrul, and the great grandfather of the Ottoman Empire founder, Osman I.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
John Mackay (poet)
John Mackay( 1656–1754), known as( The Blind Piper), was a Scottish Gaelic poet and composer, and the grandfather of William Ross.

Question: Who is the paternal grandfather of Prince Yide?
Answer: Emperor Gaozong of Tang