Eystein Glumra also called Eystein Ivarsson (born ca. 830 in Nord-Trøndelag

Nord-Trøndelag

is a county constituting the northern part of Trøndelag in Norway. As of 2010, the county had 131,555 inhabitants, making it the country's fourth-least populated county. The largest municipalities are Stjørdal, Steinkjer—the county seat, Levanger, Namsos and Verdal, all with between 21,000 and...

, Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

) was Jarl (Earl

Earl

An earl is a member of the nobility. The title is Anglo-Saxon, akin to the Scandinavian form jarl, and meant "chieftain", particularly a chieftain set to rule a territory in a king's stead. In Scandinavia, it became obsolete in the Middle Ages and was replaced with duke...

) of Oppland

Oppland

is a county in Norway, bordering Sør-Trøndelag, Møre og Romsdal, Sogn og Fjordane, Buskerud, Akershus, Oslo and Hedmark. The county administration is in Lillehammer. Oppland is, together with Hedmark, one of the only two landlocked counties of Norway....

 and Hedmark

Hedmark

is a county in Norway, bordering Sør-Trøndelag, Oppland and Akershus. The county administration is in Hamar.Hedmark makes up the northeastern part of Østlandet, the southeastern part of the country. It includes a long part of the borderline with Sweden, Dalarna County and Värmland County. The...

 in Norway.

The Heimskringla

Heimskringla

Heimskringla is the best known of the Old Norse kings' sagas. It was written in Old Norse in Iceland by the poet and historian Snorri Sturluson ca. 1230...

 Saga states that Eystein Glumra is the father of Rognvald Eysteinsson and Sigurd Eysteinsson

Sigurd Eysteinsson

Sigurd Eysteinsson was the second Viking Earl of Orkney, who succeeded his brother Rognvald Eysteinsson. He was a leader in the Viking conquest of what is now northern Scotland. Bizarrely, he was killed by the severed head of one his enemies, Máel Brigte, who may have been mórmaer of Moray...

. And, that he was grandfather of Guthorm Sigurdsson and Torf-Einarr

Torf-Einarr

Einarr Rögnvaldarson, Torf-Einarr or Turf-Einar was one of the Norse Earls of Orkney. His rise to power is related in sagas which apparently draw on verses of Einarr's own composition for inspiration...

. Although the Saga does mention a few Ivars, none are said to be Eystein's father. Descendents of Rognvald include Rollo

Rollo

Rollo has multiple meanings. It may mean:a first name*Rollo Armstrong, member of British dance act Faithless* Rollo May, American psychologist...

, William the Conqueror and the resulting Royal Families of England.

The first earl in the Orkney Islands was called Sigurd, who was a son of Eystein Glumra, and brother of Ragnvald earl of More. After Sigurd, his son Guthorm was earl for one year. After him Torf-Einar, a son of Ragnvald, took the earldom, and was long earl, and was a man of great power.

According to the Orkneyinga Saga

Orkneyinga saga

The Orkneyinga saga is a historical narrative of the history of the Orkney Islands, from their capture by the Norwegian king in the ninth century onwards until about 1200...

, Eystein the noisy was the son of Ivar the Uplanders’ earl, and grandson of Halfdan the Old

Halfdan the Old

Halfdan the Old was an ancient, legendary king from whom descended many of the most notable lineages of legend...

. He was also father of Rognvald The Wise.

Heiti, Gorr’s son, was father of Sveiði the sea-king, the father of Halfdan the old, the father of Ivar the Uplanders’ earl, the father of Eystein the noisy, the father of earl Rognvald the mighty and the wise in council.