Staurakios or Stauracius (; early 790s – 11 January 812) was the shortest-reigning Byzantine emperor, ruling for 68 days between 26 July and 2 October 811.

He was born in the early 790s, probably between 791 and 793, to Nikephoros I and an unknown woman. Nikephoros seized the throne of the Byzantine Empire from Empress Irene in 802, and elevated Staurakios to co-emperor on 25 December 803. On 20 December 807, a bride show was held by Nikephoros to select a wife for Staurakios, which resulted in his marriage to Theophano of Athens, a kinswoman of Irene. Little else is known of him until he came to take the throne upon the death of Nikephoros.

Staurakios took part in an invasion of the Bulgarian Khanate in 811, alongside his father and brother-in-law. Although initially successful, with the Byzantines laying siege to the Bulgarian capital of Pliska and defeating a relief force, they were soon ambushed by Khan Krum, and trapped in a small valley. The Bulgarians then attacked, starting the Battle of Pliska on 26 July 811, wherein much of the Byzantine army was destroyed, and Nikephoros was slain. Carried back to Constantinople by litter, Staurakios was declared emperor despite his severe injuries from the battle, which included the severing of his spine. While this was done to maintain legitimacy in the succession, the question of his successor was hotly debated. His reign was short due to the political uncertainties surrounding his wounds; he was usurped by his brother-in-law, who acceded to the imperial throne as Michael I Rhangabe, on 2 October 811. After being removed from power, he was sent to live in a monastery, where he stayed until he died, either of gangrene or poisoned by his sister, Prokopia, on 11 January 812.

Biography

Early life and background Staurakios was born in the early 790s, probably between 791 and 793, to Nikephoros I and an unknown woman. The historian J. B. Bury stated that he was likely younger than his sister Prokopia. Staurakios was named after his paternal grandfather. His father was likely the same Nikephoros as the one who had been of the Armeniac Theme before being deposed for supporting Empress Irene (). He was also possibly (finance minister) at the time of Staurakios birth, as he achieved this rank by 797. Nikephoros revolted against Irene on 31 October 802 AD, and seized the throne for himself, exiling Irene to a convent on the island of Principo. Treadgold comments that this was "a bloodless and relatively harmonious transfer of power", and that while Nikephoros seized the throne from Irene, he did not displace her regime, but rather usurped it for himself. Staurakios was around 10–12 years old at the time Nikephoros became emperor. At the beginning of his rule, Nikephoros had strong support from the bureaucracy, and superficially positive relations with the army and clergy.

Treadgold suggests that Nikephoros had witnessed "a good deal of financial mismanagement" before he seized power, but was unable to prevent it at that time. Indeed, one of his first acts as emperor was to seize control of a secret treasury reserve from Irene. Soon after, he took measures to increase the treasury, such as canceling tribute payments to the Abbasid Caliphate, an "exorbitant and humiliating payment", accepting the risk of war. Later, he ended the suspension of urban tariffs and estate taxes that Irene had implemented. Treadgold comments that the suspension of Irene's popular fiscal policies was bold, and risked reducing his own popularity, but that Nikephoros must have considered them too expensive to continue, and was aware that the capital was relatively undertaxed compared to the rest of the empire. He took similar efforts to tackle the issue of corruption, founding a new court where he heard complaints levied by the poor against the elites. While his supporters praised him for championing the poor, opponents declaimed him for his measures against the wealthy. Some of these opponents also alleged greed, but Treadgold comments that this likely referred to the effort Nikephoros put into collecting revenues, as the man himself was famously austere.

Reign as co-emperor Staurakios was not given an official government position upon his father's accession to the throne, but, in the summer of 803, a general named Bardanes Tourkos revolted against Nikephoros, prompting a change of course. Originally of the Thracesian Theme, Nikephoros had consolidated the five major themes of Asia Minor—Anatolic, Armeniac, Bucellarian, Opsikion, and Thracesian—under Bardanes control as of the combined area. When the Abbasid Caliphate began preparations for an attack that summer, Nikephoros was unable to take command due to an injury sustained in May, the role fell to Bardanes, who advanced his troops and began preparations. There, his troops grumbled over Nikephoros financial policies, which included the reinstatement of the estate tax on soldiers; by comparison, Bardanes was considered to be very charitable in dividing war spoils, and thus they declared him emperor on July 19. Treadgold comments that although the rebellion theoretically commanded nearly half of the army, Bardanes seemed to lack the commitment to become emperor, and soon discussed terms with Nikephoros, who swore not to harm Bardanes or his soldiers if Bardanes would surrender and enter the monastery, which Bardanes did in early September. Although Nikephoros abided by his pledge not to harm the surrendered men, he did seize a significant amount of money and property from the leaders of the rebellion, fined four of the themes a year's worth of salary, and exiled some bishops to the remote island of Pantelleria, near Sicily. Nikephoros soon negotiated a moderate deal with the Abbasid Caliph Harun al-Rashid, including a small tribute payment.

Although his revolt was put down by early September, it convinced Nikephoros to consolidate his hold on the throne and secure the succession, by declaring Staurakios co-emperor and heir, which he did on Christmas Day of 803. Staurakios was crowned by the Ecumenical Patriarch of Constantinople Tarasios in the Hagia Sophia. By making Staurakios emperor, Nikephoros removed any question of the imperial succession and increased his own legitimacy—although Staurakios, now somewhere between the ages of 11 and 13, was not yet old enough to actually exercise power. The contemporary chronicler Theophanes the Confessor stated that Staurakios was "completely unfit in appearance, strength, and judgment for such an honor", but this is likely a reflection of Theophanes' own animosity toward Nikephoros and Staurakios. While opponents of Nikephoros decried Staurakios as sickly, Treadgold comments that any health issues he may have had did not prevent later participation in military campaigns; opponents also presented his obedience to his father as a failing.

When Tarasios died in 806, Nikephoros selected a man named Nikephoros, who was residing in a monastery, to succeed him. For the installation ceremony of Nikephoros as patriarch, where the new patriarch was tonsured, Staurakios was sent to represent his father. That same year, the Byzantine Empire faced a massive invasion from the Abbasid Caliphate, which forced Nikephoros to accept humiliating peace terms, paying an annual tribute of 30,000 and six great gold medals, three for Nikephoros and three for Staurakios.

Except for the installation ceremony of Patriarch Nikephoros, Staurakios is not mentioned in the sources until 807, when his father arranged Staurakios' marriage, holding an imperial bride-show to select a wife on 20 December 807. This was the second recorded Byzantine bride-show, after the one held by Constantine VI () by his mother, Empress Irene. During the bride show, Theophano of Athens was selected, likely due to the fact that she was a kinswoman of Irene, and therefore would help add legitimacy to both Nikephoros and Staurakios rule. According to Theophanes, she was chosen despite the fact that she was already engaged to a man, whom she had slept with premaritally, and was not the most beautiful of the women presented at the bride show. Staurakios and Theophano married that same month.

After his marriage, Staurakios is not mentioned again until 811, when Nikephoros prepared his invasion of the Bulgarian Khanate in May of that year. The Bulgarians had been a serious threat to the empire since the reign of Constantine IV (), who launched a calamitous attack against them. Tensions rose between 808 and 811, resulting in outright warfare. Nikephoros led the campaign over the Balkan Mountains and into the Bulgarian Khanate alongside Staurakios, who by now was in his late teens, and many senior imperial officials. The campaign saw great success at first, with the Byzantine forces attacking the Bulgarian capital of Pliska, defeating first the 12,000-strong garrison of the city, and then a relief force of 15,000 sent by Khan Krum (). In correspondence sent to Constantinople, Nikephoros credited his success to the strategic advice of Staurakios. The victorious Byzantine forces began to march back to the Byzantine Empire, but a desperate Krum managed to trap the Byzantine army in a small valley with palisades, before launching a massive assault two days later, on 26 July 811. The Battle of Pliska resulted in a Bulgarian massacre of the Byzantine forces. Much of the Byzantine army was destroyed, and Nikephoros himself was slain.

Rule as sole emperor

The remaining Byzantine forces, including a severely wounded Staurakios, retreated to Adrianople over three days. Staurakios' spine had been severed during the battle, which along with his demonstrated lack of ability, led three influential figures in the Empire, who travelled with Nikephoros and Staurakios but were uninjured, to consider the issue of Nikephoros' successor. These were the ( Master of Offices, by this time honorific) Theoktistos, the Domestic of the Schools, Stephanos, and Nikephoros' son-in-law, the (high-ranking court official) Michael Rhangabe. The severity of Staurakios wounds led to speculation as to whether he would live, although eventually those assembled judged he would make the best candidate, as the legitimate successor, and declared him emperor. The historian George Ostrogorsky comments that this was done "in strict conformity with the principle of legitimacy", and that the final settlement of the succession was to take place in Constantinople, where Staurakios would crown his successor. This was the first time a Byzantine emperor was installed outside of Constantinople, due to the urgency of the situation.

Staurakios gave a speech to the surviving troops, where he insulted Nikephoros military judgment, before being acclaimed by the army. The historian Christian Laes comments that it is difficult to assess the condition that Staurakios was in, and how he was able to deliver his virulent speech.

Almost immediately after Staurakios acceded to the throne, Michael was pressured to usurp it, due to the legitimacy granted to him by his marriage to Staurakios' sister Prokopia and his military abilities. Theoktistos and others attempted to convince Michael to take the throne, although he repeatedly refused at this time, citing an oath of loyalty he had made to both Nikephoros and Staurakios, as well as his family ties to Staurakios via his marriage to Prokopia. The historians Edward Foord and George Finlay comment that the army seemed willing to stand by Staurakios, but for his mortal wounds posing a threat to the succession of the empire, and the enemies that had been made by the severe fiscal policies of Nikephoros. As Finlay argues, a change in administration implied a change of emperor, causing many who would profit from a change of ruler to support Michael.