It is preserved only in the manuscript Kirkjubæjarbók (AM 429 12mo), a codex containing lives of female saints written in Iceland around 1500.
This manuscript also contains the only Old Norse-Icelandic poetry written about St Dorothy before 1500 and a Latin prayer to the saint not known from elsewhere in medieval Scandinavia.
[2] Dorothy also appears in three medieval and early modern Icelandic poems: Dórótheudiktur (ca.
1400–1500), which follows Dórótheu saga in Kirkjubæjarbók; Dórótheukvæði I, attributed to Ólafur Jónsson (1560-1672); Dórótheukvæði II (17th century), a rendering of the Danish ballad Den hellige Dorothea.
[3] A comprehensive bibliography can be found in Wolf's The Legends of the Saints in Old Norse-Icelandic Prose.