At the end of his life, the titular hero of Beowulf asks his young kinsman Wiglaf to build a mounment, hoping that his presence in the landscape will defend and preserve the memory of the people he leaves behind. Put another way, Beowulf seeks to remain a conceptual landmark by becoming a literal landmark. But in his desire to be reiterated, Beowulf is not alone. Navigating Landmarks of Identity shows that, across early medieval English literature, relational reiteration stabilizes relational identity when a subject’s relationships are uncertain or under threat—whether that be in riddles, catalogue poems, elegies, or charter boundary clauses. Such textual reiteration takes place not only when a boundary is transgressed, or a person is exiled, but throughout Old English literature when an author is confronted with the problem of “who” or “what” something is.