Despite substantial efforts to translate normative frameworks for peace mediation into practice, so far even well-respected norms do not seem to function properly as practical guidance for mediators. The authors argue that there are three basic reasons for this failure: first, a lack of sufficient normative knowledge, making it difficult to determine ground rules that any mediator would be wise to consider; second, a lack of a minimal explicit normative consensus regarding the reference frame of a given mediation, acknowledging all differences; and third, a lack of hands-on methodology for decision-making when mediators feel deadlocked in contradictory normative pulls. Working towards the authors' key aimto close these three gaps or at least narrow them-, this article compiles exemplary building blocks of generic normative knowledge relevant in peace processes, presents a tool for mapping the normative structure and dynamics in a given conflict, and finally introduces a practical dilemma methodology to deal with colliding normative expectations.