The Faerie Queene is an epic poem by Edmund Spenser in six books, of which the first three were published in 1590, with the rest appearing in 1596. Spenser drew on Arthurian legend and contemporary Italian epic to create a poem celebrating the court of Elizabeth I, who appears in the form of the Faerie Queene herself, Gloriana, whose knights pursue a series of quests with strong allegorical elements.
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Free online texts
Internet Archive: Spenser's Faerie Queene, illustrated by Walter Crane. George Allen (1895-97). EPUB, TXT, MOBI, PDF and other formats.
University of Adelaide (Internet Archive): The Faerie Queene. HTML, EPUB, TXT and Kindle formats.
Wikisource: The Faerie Queene - incomplete. HTML and other formats.