The First Crusade provides the backdrop for a rich tapestry of political machinations, military conflicts, martial rivalries, and love stories, some of which are complicated by differences in religion. The supernatural plays a major role in the action. Partly on this account, and partly because of the multilayered, intertwined plots, the poem met with considerable contemporary criticism, so Tasso revised it radically and published the revision under a new name, La Gerusalemme Conquistata, or "Jerusalem Conquered," which has remained virtually unread, a warning to authors who pay attention to the critics.

The original poem influenced Edmund Spenser, whose unfinished epic, The Faeri...