Detailed Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Q: The protagonist of this poem sees "pale Kings, and Princes too, / Pale warriors, death-pale were they all" in "the latest dream" he ever dreamt. " He is in anguish despite the "squirrel's granary" being full and the harvest being done. This stems from his being "On the cold hill's side" after being seduced and held in the title character's thrall. FTP, name this 1819 poem that begins "O what can ail thee, Knight at arms," a poem about a cruel lady by John Keats.
A:
Literature