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. There he was met by the multi-ethnic army of Harald, and the colossal
Battle of Brávellir followed. In the end Ring beat his uncle, who was bludgeoned to death by his own general Bruni, and became the ruler of
Denmark as well. 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. 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. A certain Adalbrikt (Æthelberht) took possession of
Northumbria and was succeeded by his sons Ama and
Ælla. One day, Sigurd was in
Västergötland and was visited by his in-laws, the sons of
Gandalf. They asked him to join them in attacking king
Eysteinn of
Vestfold in
Norway. In Vestfold, there were great
blóts held at
Skiringssal. Unfortunately,
Sögubrot (meaning the "fragment") ends there. However, the
Skjöldunga saga is believed to be the original story on which
Sögubrot is based and it continues the story (see below). ==''Olaf Tryggvason's saga'' ==