Sigurd Ring
In the Sagas, Sigurd is also known for being the father of the Norse Viking hero and legendary king of Denmark and Sweden, Ragnar Lodbrok.
Then Harald subjugated all the territories once ruled by his maternal grandfather Ivar Vidfamne (Sweden, Denmark, Curonia, Saxony, Estonia, Gardarike, Northumberland).
[5] In Sögubrot af nokkrum fornkonungum, Ring (mostly mentioned without the name element Sigurd) is the paternal nephew of the Danish king Harald Wartooth, and presumably (the part of Sögubrot where this would have been narrated expressly has not been preserved) the son of Randver, who in his turn is the son of Harald's mother Auðr the Deep-Minded and her husband king Raðbarðr of Gardariki.
Harald Wartooth was beginning to feel old, so he made Ring the king of Uppland, with the commission to rule Sweden and Västergötland.
When Harald reached the extraordinary age of 150, he desired to die like a king in battle, and therefore challenged Ring to meet him in the field.
Ring gathered manpower from Sweden, Västergötland and Norway and marched his troops by land and sea to the plain of Brávellir beneath the forest of Kolmården, close to the Bråviken bay.
[6] Sigurd Ring (as he is now called in the text) married Alfhild, the daughter of King Gandalf Alfgeirsson of Alfheim (modern Bohuslän) and their son was Ragnar Lodbrok.
As Sigurd grew old, distant parts of his realm began to secede, and it is told how he lost territory in England due to old age.
[7] According to the extended Saga of Olaf Tryggvason, Sigurd Ring, after having stabilized his Swedish-Danish realm, recalled the lands in England once ruled by Harald Wartooth and Ivar Vidfamne.
[9] The Skjöldunga saga tells that Sigurd Ring was married to Alfhild, the daughter of king Alf of Alfheim, and their son was Ragnar Lodbrok.
He appointed his cousin Ale the Strong as sub-king in Skåne while entrusting the shieldmaiden Hetha with the rest of the Danish lands.
Sigurd Ring is the father of Ragnar Lodbrok who has been brought up in Norway during the civil war, but is now hailed as Danish ruler.
[3] In Norna-Gests þáttr, it is said that Sigurd Ring was very old when he sent his son-in-law, the son of Gandalf, to request the Gjukungs, Gunnar and Högne to pay tribute.
As for Anulo, the name might originally represent Old Norse Ánleifr or Áli, though it was misunderstood by medieval Scandinavian chroniclers as Latin annulus which means ring.
[20] Saxo Grammaticus and some other medieval compilers of king lists clearly combine the names Sigfred/Sigurd and Anulo/Ring into one person, having received knowledge of 9th century historical events from the chronicle of Adam of Bremen (c. 1075).
Their historical successor Ragnfred (r. 812–813) is mixed up by Saxo with the Viking leader Ragnar Lodbrok, who is identified as the son of Sigurd Ring.
[22] One possibility is thus that the struggle of 812 is reflected in the legendary Battle of the Brávellir, fought by Sigurd Ring, nephew of Harald Wartooth.
[23] Other scholars have suggested that the original name of the ruler was Ring, that he was a historical king of the Swedes, and that he won a battle against a Danish or East Geatic host in the 8th century.
[25] Modern Swedish historians are skeptical to the prospects of establishing a chronology from the information of the High Medieval saga literature, and generally decline to discuss the possible historicity of Sigurd Ring or the Brávellir battle.
