Umako was the son of Sogo Iname no Sukune, and therefore, he would have been one of Emperor Yōmei's cousins.

Yōmei's contemporary title would not have been tennō, as most historians believe this title was not introduced until the reigns of Emperor Tenmu and Empress Jitō.

Moriya, the most influential supporter of Shintoism, conspired with Emperor Yōmei's brother, Prince Anahobe, and after Emperor Yomei's death they made an abortive attempt to seize the throne.

* 587: In the 2nd year of Yōmei-tennō's reign ( 用明天皇2年 ), the emperor died, and despite a dispute over who should follow him as sovereign, the succession (‘‘ senso ’’) was received by another son of Emperor Kimmei, one of Yōmei's younger brothers.

One was a praetor under Emperor Tiberius ’ reign and the other, his son, was a general.

He was the last Byzantine Emperor to reign in Constantinople before the establishment of the Latin Empire, which controlled the city for the next 57 years, until it was recovered by the Nicaean Emperor Michael VIII Palaiologos.

Bede follows Gildas ' account of Ambrosius in his Ecclesiastical History of the English People, but in his Chronica Majora he dates Ambrosius ' victory to the reign of the Emperor Zeno ( 474 – 491 ).

Effective administrative authority during the reign of Andronikos III was wielded by his megas domestikos John Kantakouzenos, while the Emperor enjoyed himself hunting or waging war.

In this reign of a weak Emperor dominated by court politics, a major theme was the ambivalence felt by prominent individuals and the court parties that formed and regrouped round them towards barbarians, which in Constantinople at this period meant Goths.

These mostly range in date from the beginning of the Greek Bronze Age ( about 3200 BC ) to the reign of the Roman Emperor Constantine I in the 4th century AD.

For example, the year in Japan is based on the reign of the current emperor: 2006 was Year 18 of the Emperor Akihito.

Though the unified reign of the First Qin Emperor lasted only 12 years, he managed to subdue great parts of what constitutes the core of the Han Chinese homeland and to unite them under a tightly centralized Legalist government seated at Xianyang ( close to modern Xi ' an ).

The dynasty continued to flourish under Empress Wu Zetian, the only empress regnant in Chinese history, and reached its zenith during the reign of Emperor Xuanzong, who oversaw an empire that stretched from the Pacific to the Aral Sea with at least 50 million people.

Furthermore, China's first permanent standing navy was assembled and provided an admiral's office at Dinghai in 1132, under the reign of Emperor Renzong of Song.

Ming China under the reign of the Yongle Emperor

In former times, it was customary to have a portrait in Confucius Temples ; however, during the reign of Hongwu Emperor ( Taizu ) of the Ming dynasty it was decided that the only proper portrait of Confucius should be in the temple in his hometown, Qufu.

The oldest recorded census in India is thought to have occurred around 300 BCE during the reign of the Emperor Chandragupta Maurya under the leadership of Kautilya or Chanakya.

Jaivana | Jaivan Cannon-World's largest Cannon on wheels, which was cast in India during the reign of the Mughal Emperor Muhammad Shah by his Kiladar, Jai Singh II.

* 1308 – The reign of Emperor Hanazono, emperor of Japan, begins.

The oldest confirmed written mention of dominoes in China comes from the Former Events in Wulin ( i. e. the capital Hangzhou ) written by the Yuan Dynasty ( 1271 – 1368 ) author Zhou Mi ( 1232 – 1298 ), who listed " pupai " ( gambling plaques or dominoes ) as well as dice as items sold by peddlers during the reign of Emperor Xiaozong of Song ( r. 1162 – 1189 ).

The " Heshang Gong Version " is named after the legendary Heshang Gong ( " Riverside Sage ") who supposedly lived during the reign ( 202-157 BC ) of Emperor Wen of Han.

The following day Domitian was declared Emperor by the Praetorian Guard, commencing a reign which lasted fifteen years – longer than any man who had ruled since Tiberius.

As Emperor, Domitian quickly dispensed with the republican facade his father and brother had maintained during their reign.

The military campaigns undertaken during Domitian's reign were generally defensive in nature, as the Emperor rejected the idea of expansionist warfare.

The most extensive account of the life of Domitian to survive was written by the historian Suetonius, who was born during the reign of Vespasian, and published his works under Emperor Hadrian ( 117 – 138 ).

The first foot-sensor-activated automatic door was made in China during the reign of Emperor Yang of Sui ( r. 604 – 618 ), who had one installed for his royal library.

In the southeast of Eritrea, the Sultanate of Awsa, an Afar sultanate, came to dominate the coastline after its founding in 1577, becoming vassal to the Emperor of Ethiopia under the reign of Susenyos I.

Many historians trace modern Ethiopian foreign policy to the reign of Emperor Tewodros II, whose primary concerns were the security of Ethiopia's traditional borders, obtaining technology from Europe ( or modernization ), and to a lesser degree Ethiopian rights to the monastery of Dar-es-Sultan in the city of Jerusalem.

Emperor Sushun's reign lasted for five years before his death at the age of 72.

Emperor Mommu's reign lasted 10 years.

The last true Roman Emperor in the West was unseated in 476, by which time it had been completely overrun by Germanic nations ; however, the Eastern half, known as the Byzantine Empire, lasted much longer, persevering in one form or another until 1453.

The civil war lasted ten years and was ended only by a peace treaty imposed by the Emperor Louis II, the only Frankish king to exercise actual sovereignty over the Lombard states, in 849, which divided the kingdom into two states: the Principality of Benevento and the Principality of Salerno, with its capital at Salerno on the Tyrrhenian.

The Tokugawa shogunate lasted until 1867, when Tokugawa Yoshinobu resigned as shogun and abdicated his authority to Emperor Meiji.

After Emperor He's death, his wife Empress Deng Sui ( d. 121 CE ) managed state affairs as the regent empress dowager during a turbulent financial crisis and widespread Qiang rebellion that lasted from 107 to 118 CE.

In the French coup of 1851, Napoleon declared himself Emperor Napoleon III of the Second Empire, which lasted from 1852 to 1870.

Emperor Jomei's reign lasted 13 years.

In the following year, the older of these two sisters became Empress Zhangde, the wife of Emperor Zhang of Han, and lasted briefly as empress dowager and regent during the early reign of Emperor He of Han.

Once more Woerden became a border town between two belligerent powers, a situation that lasted until 1527 when the Bishop of Utrecht sold his territories to Emperor Charles V and the two statelets were united under Charles ' rule.

Emperor Konoe's reign lasted for 14 years: 2 years in the nengō Kōji, 1 year in Ten ' yō, 6 years in Kyūan, 3 years in Ninpei, and 2 years in Kyūju.

After some foreign invasions ( notably that of Emperor Henry VII in 1311 ), the Cavalcabò lasted until November 29, 1322, when a more powerful family, the Visconti of Galeazzo I, came to prominence that in Cremona was to last for a century and a half.

Emperor Wu was ecstatic in having a child at his advanced age ( 62 ), and because Consort Zhao purportedly had a pregnancy that lasted 14 months long — the same length as the mythical Emperor Yao -- he named Consort Zhao's palace gate " Gate of Yao's Mother.

In 1937, it was taken as war booty and moved to Rome by the Fascist regime, which wanted to commemorate the conquest of Ethiopia and the birth of the ephemeral " new Roman empire " ( see Italian Empire ), which actually lasted for only 5 years ( 5 May 1936 marshal Badoglio entered Addis Ababa ; 5 May 1941 Emperor Haile Selassie reentered Addis Ababa ).

Emperor Longqing's reign lasted a mere six years and was succeeded by his son.

The Shun Dynasty lasted less than a year until Li's defeat at the Battle of Shanhai Pass, with the victorious Manchus establishing the Shunzhi Emperor of the Qing Dynasty as ruler of all China.

Given that his reign lasted for, at best, only a few weeks after his acclamation and he does not seem to have secured significant military or political support Domitianus is more properly categorized as a Roman Usurper rather than an Emperor.

Benito Mussolini instead made Ethiopia an Italian province and proclaimed Victor Emmanuel III to be the Emperor of Ethiopia-a title considered illegitimate by parts of the international community, and lasted only five years.

The kuge still provided a weak court around the Emperor right up until the Meiji Restoration, when they merged with the daimyo, regaining some of their status in the process, and formed the kazoku ( peerage ), which lasted until shortly after World War II ( 1947 ), when the Japanese peerage system was abolished.

In their view, the Empire could never have lasted longer than it did without radical reforms that no Emperor could implement.