Tjuyu
Tjuyu( sometimes transliterated as Thuya or Thuyu) was an Egyptian noblewoman and the mother of queen Tiye, and the wife of Yuya.
She is the grandmother of Akhenaten, and great grandmother of Tutankhamun.
Zhang Yan (footballer, born 1997)
Zhang Yan( born 30 March 1997) is a Chinese footballer currently playing as a goalkeeper for Jiangsu Suning.
Mona Hopton Bell
Mona Hopton Bell( 1867- 1940) was a British artist, best known for her portraits of civic figures.
She was the grandmother of the painter Jean H. Bell.
Anne Denman
Anne Denman( 1587–1661) was born in Olde Hall, Retford, Nottinghamshire.
Through a fortunate second marriage with Thomas Aylesbury, she became the grandmother of Lady Anne Hyde, Duchess of York and great- grandmother of Queen Mary II and Queen Anne.
Kaoru Hatoyama
After the elections of 2009, she became more widely known as the grandmother of Prime Minister Yukio Hatoyama and his politician brother Kunio Hatoyama.
Empress Zhang Yan
Zhang Yan (died 163 BC), known formally as Empress Xiaohui (孝惠皇后) was an empress during the Han Dynasty.
She was the daughter of Princess Yuan of Lu (the only daughter of Emperor Gao (Liu Bang) and his wife Empress Lü) and her husband Zhang Ao (張敖, son of Zhang Er), the Prince of Zhao and later Marquess of Xuanping.
In 192 BC, at the insistence of then-Empress Dowager Lü, Lady Yan married her uncle Emperor Hui, the son of Emperor Gao and Empress Dowager Lü, and she was created empress.
The marriage was a childless one.
At Empress Dowager Lü's instruction, Empress Zhang took several male children as her own and killed their mothers.
(Whether these children were Emperor Hui's is a matter of controversy, although it appears likely that they were Emperor Hui's children by his concubines.)
When Emperor Hui died in 188 BC at the age of 22, one of the children that Empress Zhang adopted became emperor (as Emperor Qianshao), but Grand Empress Dowager Lü had effective total control of the imperial government.
Empress Zhang, was not made empress dowager as this title was retained by Empress Dowager Lü who never claimed the title Grand Empress Dowager and did not appear to have significant influence.
Nevertheless, when Emperor Qianshao found out in 184 BC that he was not actually her child, he made a careless comment that he would take vengeance on her—at which Empress Dowager Lü had him deposed and executed, and replaced him with his brother Liu Hong (as Emperor Houshao), who was also adopted by Empress Zhang.
It was during Emperor Qianshao's reign that Empress Zhang's brother Zhang Yan (張偃, pinyin Zhāng Yǎn—notice difference in tone) was created the Prince of Lu.
After Empress Dowager Lü died in 180 BC, and the Lü clan overthrown and slaughtered by the officials opposed to the Lüs in the Lü Clan Disturbance, Emperor Houshao was deposed and killed.
Empress Zhang was not killed, but she was put under house arrest in a palace to the north after being deposed from her position as empress and henceforth referred to as Empress Hui.
Her brother, the Prince of Lu, was also deposed and reduced in rank to Marquess of Nangong.
After this no records exist of her later life until her death.
Empress Zhang died in 163 BC and was buried with her husband of merely four years.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Hubba bint Hulail
Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic" Nabī"( Prophet) Muhammad ibn Abdullah.
Zhang Yan (footballer)
Zhang Yan( born) was a female Chinese football player.
She participated in the 1996 Summer Olympics.
Princess Yuan of Lu
Princess Yuan of Lu, also called Princess Luyuan was a princess of the Han Dynasty.
She was the eldest daughter of the dynasty's founder Emperor Gaozu and Empress Lü Zhi.
She had one daughter who was married to her younger brother, Emperor Hui.

Question: Who is the maternal grandmother of Empress Zhang Yan?