Ralph Knevet's Supplement of the Faery Queene (1635) is a narrative and allegorical work, which weaves together a complex collection of tales and episodes, featuring knights, ladies, sorcerers, monsters, vertiginous fortresses and deadly battles – a chivalric romp in Spenser's cod medieval style. The poem shadows recent English history, and the major military and political events of the Thirty Years War. But the Supplement is also an ambitiously intertextual poem, weaving together materials from mythic, literary, historical, scientific, theological, and many other kinds of written sources. Its encyclopaedic ambitions combine with Knevet's historical focus to produce an allegorical epic poem of considerable interest and power. This new edition of Knevet's Supplement, the first scholarly text of the poem ever published, situates it in its literary, historical, biographical, and intellectual contexts. An extensive introduction and copious critical commentary, positioned at the back of the book, will enable students and scholars alike to access Knevet's complicated and enigmatic meanings, structures, and allusions.