Brot af Sigurðarkviðu is the remaining 22 stanzas of a heroic Old Norse poem in the Poetic Edda

Poetic Edda

The Poetic Edda is a collection of Old Norse poems primarily preserved in the Icelandic mediaeval manuscript Codex Regius. Along with Snorri Sturluson's Prose Edda, the Poetic Edda is the most important extant source on Norse mythology and Germanic heroic legends, and from the early 19th century...

. In the Codex Regius

Codex Regius

Cōdex Rēgius is an Icelandic manuscript in which the Poetic Edda is preserved. It is made up of 45 vellum leaves, thought to have been written in the 1270s. It originally contained a further 8 leaves, which are now missing...

, there is a gap of eight leaves where the first part of the poem would have been found, and also the last part of the Sigrdrífumál

Sigrdrífumál

Sigrdrífumál is the conventional title given to a section of the Poetic Edda text in Codex Regius....

. Luckily, the missing narrative is preserved in the Völsunga saga

Volsunga saga

The Völsungasaga is a legendary saga, a late 13th century Icelandic prose rendition of the origin and decline of the Völsung clan . It is largely based on epic poetry...

in prose form with four stanzas of poetry. According to Henry Adams Bellows

Henry Adams Bellows

Henry Adams Bellows was a lawyer, state legislator, and jurist born in Rockingham, Vermont. He was elected to the New Hampshire House of Representatives from Littleton, New Hampshire in 1839. He was subsequently elected again to the House from Concord, New Hampshire in 1856–1857, and served as...

, the original size of the poem should have been more than 250 stanzas.