"Codex Regius" was written during the 13th century, but nothing was known of its whereabouts until 1643, when it came into the possession of Brynjólfur Sveinsson, then Bishop of Skálholt.At the time, versions of the "Edda" were known in Iceland, but scholars speculated that there once was another Edda, an Elder Edda, which contained the pagan poems that Snorri quotes in his "Edda".