Varangian Guard in the context of "Varangians"

Harald Sigurdsson (Old Norse: Haraldr Sigurðarson; c. 1015 – 25 September 1066), also known as Harald III of Norway and given the epithet Hardrada in the sagas, was King of Norway from 1046 to 1066. He unsuccessfully claimed the Danish throne until 1064 and the English throne in 1066. Before becoming king, Harald spent 15 years in exile as a mercenary and military commander in Kievan Rus' and chief of the Varangian Guard in the Byzantine Empire. In his chronicle, Adam of Bremen called him the "Thunderbolt of the North".

In 1030, the fifteen-year-old Harald fought in the Battle of Stiklestad alongside his half-brother Olaf Haraldsson. Olaf sought to reclaim the Norwegian throne, which he had lost to Danish king Cnut two years previously. Olaf and Harald were defeated by forces loyal to Cnut, and Harald was forced into exile to Kievan Rus'. Thereafter, he was in the army of Grand Prince Yaroslav the Wise, becoming captain, until he moved on to Constantinople with his companions around 1034. In Constantinople, he rose quickly to become the commander of the Byzantine Varangian Guard, seeing action on the Mediterranean Sea, in Asia Minor, Sicily, possibly in the Holy Land, Bulgaria and in Constantinople itself, where he became involved in the imperial dynastic disputes. Harald amassed wealth whilst in the Byzantine Empire, which he shipped to Yaroslav in Kievan Rus' for safekeeping. In 1042, he left the Byzantine Empire, returning to Kievan Rus' to prepare to reclaim the Norwegian throne. In his absence the Norwegian throne had been restored from the Danes to Olaf's illegitimate son Magnus the Good.

Nikephoros III Botaneiates (Greek: Νικηφόρος Βοτανειάτης, romanized: Nikēphóros Botaneiatēs; 1002–1081), Latinized as Nicephorus III Botaniates, was Byzantine Emperor from 7 January 1078 to 1 April 1081. He became a general during the reign of Byzantine Emperor Constantine IX Monomachos, serving with distinction during the Pecheneg revolt of 1048–1053. In 1057 he aided Isaac I Komnenos in overthrowing Emperor Michael VI Bringas, leading forces at the decisive Battle of Petroe. Under the Emperor Constantine X Doukas Nikephoros was made doux, first of Thessalonica and subsequently of Antioch. In the latter position he repelled numerous incursions from the Emirate of Aleppo. Constantine X died in 1067 and Empress Eudokia Makrembolitissa married Romanos IV Diogenes; Nikephoros, who had also been a candidate for Eudokia's hand and the position of emperor, was exiled and remained in retirement until Emperor Michael VII summoned him to serve as kouropalates and governor of the Anatolic Theme.

Having insulted Emperor Michael with overly frank appeals for help against the Seljuk Turks in Byzantine Anatolia, Nikephoros decided to protect himself from reprisals by seizing the throne. His military acumen and family renown won him strong support, and he took power in 1078 with the approval of the Byzantine Senate and the citizens of Constantinople. As emperor he faced numerous revolts, including those of Nikephoros Bryennios, Nikephoros Basilakes, and Constantine Doukas, as well as an attempted assassination by the Varangian Guard. Nikephoros performed many acts to increase his legitimacy and support, spending large amounts on donatives for the army and his supporters, forgiving all debt in arrears, and instituting minor legal reforms. Diplomatically, he secured the submission of Theodore Gabras and Philaretos Brachamios, governors of Trebizond and Antioch, respectively, who had become de facto independent of the Byzantine Empire.

The Dane axe or long axe (including Danish axe and English long axe) is a type of European early medieval period two-handed battle axe with a very long shaft, around 0.9–1.2 metres (2 ft 11 in – 3 ft 11 in) at the low end to 1.5–1.7 metres (4 ft 11 in – 5 ft 7 in) or more at the long end. Sometimes called a broadaxe (Old Norse: breiðøx), the blade was broad and thin, intended to give a long powerful cut when swung, effective against cavalry, shields and unarmored opponents.

Dane axes were predominantly used during the European Viking Age to the transition between the Early Middle Ages and High Middle Ages, later being developed into the poleaxe, halberd and other similar polearms by lengthening the shaft and adding a lengthwise pike on the end and spike on the reverse. It is one of the predominant weapons depicted on the Bayeux Tapestry, a period tapestry depicting the events of the Norman Conquest of England in 1066, and one of the specified weapons common with the Varangian Guard.

The Greece runestones (Swedish: Greklandsstenarna) are about 30 runestones containing information related to voyages made by Norsemen to the Byzantine Empire. They were made during the Viking Age until about 1100 and were engraved in the Old Norse language with Scandinavian runes. All the stones have been found in modern-day Sweden, the majority in Uppland (18 runestones) and Södermanland (7 runestones). Most were inscribed in memory of members of the Varangian Guard who never returned home, but a few inscriptions mention men who came back with wealth, and a boulder in Ed was engraved on the orders of a former officer of the Guard.

On these runestones the word Grikkland ("Greece") appears in three inscriptions, the word Grikk(j)ar ("Greeks") appears in 25 inscriptions, two stones refer to men as grikkfari ("traveller to Greece") and one stone refers to Grikkhafnir ("Greek harbours"). Among other runestones which refer to expeditions abroad, the only groups which are comparable in number are the so-called "England runestones" that mention expeditions to England and the 26 Ingvar runestones that refer to a Viking expedition to the Middle East.

The Thingmen (Old English: Þingalið) was a unit (or a body of men) in the service of the Kings of England during the period 1013–1051. The unit was financed by direct taxation which had its origins in the tribute known as Danegeld. It consisted mostly of men of Scandinavian descent and it had an initial strength of 3,000 housecarls and a fleet of 40 ships, which was subsequently reduced. The last remnant of a Thingmen was disbanded by Edward the Confessor in 1051.

In the 11th century, three courts outside Scandinavia were particularly prominent in recruiting Scandinavian troops: Novgorod-Kiev (Kievan Rus') c. 980–1060, Constantinople (the Varangian Guard) 988–1204, and England 1018–1051. Scandinavia was however also a recruiting area for attacks against England and this is why a defence needed to be organized by the Danish king Cnut the Great. The Thingmen attracted Swedish mercenaries, and probably some Norwegian as well.