The Niu–Li factional strife () was an ongoing contention at the court of the mid-to late Tang dynasty.
 It is largely viewed to have started during the reign of Emperor Muzong, circa 821, but having its seeds in the events of his father Emperor Xianzong—between two court factions later to be referred to by Chinese historians as the Niu Faction (牛黨), named after Niu Sengru, which was largely viewed as a faction of officials from humble origins and who passed the imperial examinations to get into government; and the Li Faction (李黨), named after Li Deyu, which was largely viewed as a faction of officials from aristocratic origins.
 The two factions struggled for decades at court, during the reigns of Emperor Muzong and his sons Emperor Jingzong, Emperor Wenzong, and Emperor Wuzong.
 The struggles are viewed as having ended at the start of the reign of Emperor Wuzong's successor and Emperor Muzong's younger brother Emperor Xuānzong, in 846.
 His clear dislike for Li Deyu, and systematic demotion of related officials, led to the complete defeat of the Li Faction.
It is not clear what led Abdal-Latif Mirza to revolt against his father Ulugh Beg in 1449 C.E.
 Many theories abound; one being that he was raised by Goharshad in Herat and not by his father Ulugh Beg who was governor of Samarkand during the reign of Shahrukh Mirza, therefore Abdal-Latif Mirza was not attached to his father.
 Ulugh Beg on the other hand preferred his second son Abdal-Aziz Mirza to be his heir, whom he had raised himself and groomed to take over.
 Another reason was that when the Baysonqor brothers invaded Khurasan, Ulugh Beg left his son Abdal-Latif Mirza, to deal with a difficult situation making it look as if it were his failures that led to the loss of Khurasan; this Abdal-Latif Mirza resented deeply.
 And finally, during a revolt in Balkh in Spring of 1449 by a certain Miranshah, which was crushed by Abdal-Latif Mirza, was discovered a letter from Ulugh Beg to this Miranshah ordering him to instigate the revolt.
 This story is not corroborated by any other source than Mirkhond but is given as a last excuse for all out war with his father.
 The real reason of this revolt may never be fully understood but Abdal-Latif Mirza marched in haste towards Samarkand after abolishing the state taxes on trade through Balkh and taking over the river boats on Amu Darya.
Marcus Aurelius ( ; Latin: "Marcus Aurelius Antoninus Augustus" ; 26 April 121 – 17 March 180 AD) was Roman emperor from , ruling jointly with Lucius Verus until Verus' death in 169 and jointly with his son, Commodus, from 177.
 He was the last of the so-called Five Good Emperors.
The Qianlong Emperor (25 September 1711 – 7 February 1799) was the sixth emperor of the Manchu-led Qing dynasty, and the fourth Qing emperor to rule over China proper.
 Born Aisin Gioro Hongli, sometimes referred to simply as Hongli, the fourth son of the Yongzheng Emperor, he reigned officially from 11 October 1735 to 8 February 1796.
 On 8 February, he abdicated in favour of his son, the Jiaqing Emperor – a filial act in order not to reign longer than his grandfather, the illustrious Kangxi Emperor.
 Despite his retirement, however, he retained ultimate power as the Emperor Emeritus (or Retired Emperor) until his death in 1799; he thus was the longest-reigning "de facto" ruler in the history of China, and dying at the age of 87, the longest-living.
 As a capable and cultured ruler inheriting a thriving empire, during his long reign the Qing Empire reached its most splendid and prosperous era, boasting a large population and economy.
 As a military leader, he led military campaigns expanding the dynastic territory to the largest extent by conquering and sometimes destroying Central Asian kingdoms.
 This turned around in his late years: the Qing empire began to decline with corruption and wastefulness in his court and a stagnating civil society.
Emperor An of Jin (; 382–419), personal name Sima Dezong (司馬德宗), was an emperor of the Eastern Jin Dynasty (265-420) in China.
 He was described as so developmentally disabled that he was unable to speak, clothe himself, or be able to express whether he was hungry or full.
 He was created crown prince in 387 and ascended the throne in 397.
 Because of his disability, the actual power was controlled by his uncle, Sima Daozi, Prince of Kuaiji.
 During his reign, regents and warlords dominated the Jin regime.
 Revolts by various governors also ravaged the land.
 From 398 to 403, there were constant revolts and civil war campaigns.
 In 403, the Jin regime was usurped by the warlord Huan Xuan, and while Emperor An was restored in 404, the Jin Dynasty was nearing its end.
 With the warlord Liu Yu as the actual power, Jin destroyed Southern Yan and Later Qin, greatly expanding its territory.
 However, with Liu Yu up in the north, the renegade governor of Guang Province (廣州, modern Guangdong and Guangxi), Lu Xun, rebelled and threatened the capital city Jiankang, before Liu Yu returned and crushed the revolt.
 In 419, Emperor An was strangled under the order of Liu Yu and replaced with his brother Emperor Gong, who would be the last emperor of the dynasty, before Liu Yu would take the throne and establish the Liu Song Dynasty.
The Dungan Revolt (1862–77) or Tongzhi Hui Revolt (, Xiao'erjing: توْجِ حُوِ بِيًا/لُوًا, Dungan: Тунҗы Хуэй Бян/Луан ) or Hui (Muslim) Minorities War was a mainly ethnic and religious war fought in 19th-century western China, mostly during the reign of the Tongzhi Emperor (r. 1861–75) of the Qing dynasty.
 The term sometimes includes the Panthay Rebellion in Yunnan, which occurred during the same period.
 However, this article relates specifically to the uprising by members of the Muslim Hui and other Muslim ethnic groups in China's Shaanxi, Gansu and Ningxia provinces, as well as in Xinjiang, between 1862 and 1877.
 The revolt arose over a pricing dispute involving bamboo poles, when a Han merchant selling to a Hui did not receive the amount demanded for the goods.
 A recorded 20.77 million population reduction in Shaanxi and Gansu due to migration and war related death.
 74.5% reduction in Gansu, and 44.7% in Shaanxi.
 In Shaanxi, 83.7% (~5.2 million) of the total loss occurred in the period of war as a consequence of mass migration and war death.
 Many civilian deaths were also caused by famine due to war conditions.
The Jianwen Emperor (; 5 December 1377 – 13 July 1402) was the second emperor of the Ming dynasty in China.
 His personal name was Zhu Yunwen (朱允炆 ).
 The era name of his reign, "Jianwen", means "establishing civility" and represented a sharp change in tone from "Hongwu" ("vastly martial"), the era name of the reign of his grandfather and predecessor, the Hongwu Emperor.
 His reign did not last long: an attempt to restrain his uncles led to the Jingnan rebellion.
 The Jianwen Emperor was eventually overthrown by one of his uncles, Zhu Di, who was then enthroned as the Yongle Emperor.
 Although the Yongle Emperor presented a charred body as Zhu Yunwen's, rumours circulated for decades that the Jianwen Emperor had disguised himself as a Buddhist monk and escaped from the palace when it was set on fire by Zhu Di's forces.
 Some people speculated that one of the reasons behind why the Yongle Emperor sponsored the admiral Zheng He on his treasure voyages in the early 15th century, was for Zheng He to search for the Jianwen Emperor, who was believed to have survived and fled to Southeast Asia.
 Some historians believe that the Jianwen Emperor had indeed survived and escaped from Nanjing, but the official histories of the Ming dynasty were modified later during the Qing dynasty to please the Manchu rulers.
Emperor Jing of Han (188–141 BC), personal name Liu Qi (劉啟), was the sixth emperor of the Chinese Han dynasty from 157 to 141 BC.
 His reign saw the limiting of the power of the feudal kings/princes which resulted in the Rebellion of the Seven States in 154 BC.
 Emperor Jing managed to crush the revolt and princes were thereafter denied rights to appoint ministers for their fiefs.
 This move consolidated central power which paved the way for the long reign of his son Emperor Wu of Han.
Isidorus (born c. 139) was a native ancient Egyptian priest in the 2nd century during the Roman rule in Egypt.
 He led the native Egyptian revolt against Roman rule during the reign of emperor Marcus Aurelius.
The 1465 Moroccan revolt refers to a popular revolt by local Sharifs in Fes who overthrew the last Marinid sultan.
 The revolt marked the end of a 215-year reign (1244–1465).
 The sharifs formed a "jihad", against the last Marinid leader, a Jewish vizir, Aaron ben Batash, appointed by Abu Muhammad Abd Al-Haqq.
 They subsequently put him to death, cutting his throat.
 Almost all the Jewish community of Fes were also slaughtered in the revolt.
 As a result of the troubles in Fes, the Portuguese king Afonso V finally managed to take Tangier.

Question: Isidorus led a revolt during the reign of an emperor who was the last of a group known as the what?
Answer: Five Good Emperors