Empress Xiaoyuanzhen
Empress Xiaoyuanzhen( 1580- 1613) was the first wife of the Taichang Emperor when he was crown prince.
She died before he ascended the throne, but is more commonly known by her posthumous name.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Wanli Emperor
The Wanli Emperor (4 September 1563 – 18 August 1620), personal name Zhu Yijun , was the 14th Emperor of the Ming dynasty, reigned from 1572 to 1620.
"Wanli", the era name of his reign, literally means "ten thousand calendars".
He was the third son of the Longqing Emperor.
His reign of 48 years (1572–1620) was the longest among all the Ming dynasty emperors and it witnessed several successes in his early and middle reign, followed by the decline of the dynasty as the Emperor withdrew from his active role in government around 1600.
Fujiwara no Nagara
, also known as Fujiwara no Nagayoshi, was a Japanese statesman, courtier and politician of the early Heian period.
He was the grandfather of Emperor Yōzei.
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
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.
Taichang Emperor
The Taichang Emperor (28 August 1582 – 26 September 1620), personal name Zhu Changluo , was the 15th Emperor of the Ming dynasty.
He was the eldest son of the Wanli Emperor and succeeded his father as emperor in 1620.
However, his reign came to an abrupt end less than one month after his coronation when he was found dead one morning in the palace following a bout of diarrhea.
He was succeeded by his son, Zhu Youjiao, who was enthroned as the Tianqi Emperor.
His era name, Taichang, means "grand prosperity."
His reign was the shortest in Ming history.
Prithvipati Shah
Prithvipati Shah( ?–1716) was the king of the Gorkha Kingdom in the Indian subcontinent, present- day Nepal.
He was the grandfather of Nara Bhupal Shah.

Question: Who is the paternal grandfather of Taichang Emperor?