The Prose Edda was composed in Iceland around 1220 by Snorri Sturluson (1178/79-1241), a poet and a member of the powerful Sturlung family. He is believed to also have written Heimskringla. The Prose Edda is also referred to as Snorra Edda [Snorri’s Edda] and The Younger Edda. The latter title is based on the belief that the Prose Edda was composed after the texts that make up the Poetic Edda. The Prose Edda, however, is the only one of the two books which was known by the name Edda in Medieval Iceland. This name is attested in the Codex Upsaliensis version, which opens by stating that the book is called Edda and that it was …
Olsen, Carl. "Edda, the Prose". The Literary Encyclopedia. First published 05 July 2008; last revised 30 November -1.
[http://www.litencyc.com/php/sworks.php?rec=true&UID=5442, accessed 21 April 2015.]