This paper examines how medieval Swedish minting authorities (1277–1540) appear to have maintained relative price stability despite repeated debasement and silver shortages. Written sources are scarce, and no direct statements of intent survive, but historical data on coinage, exchange rates, and prices reveal a consistent pattern of gradual debasement. We consider two explanations: implicit price stabilization and seigniorage-related objectives. These are not mutually exclusive—seigniorage required debasement to track silver appreciation. The correlation between declining silver content and rising silver value is consistent with an adaptive process, even if rulers’ motivation cannot be proven. This challenges conventional views of medieval debasement and highlights the pragmatic outcomes that could emerge from monetary decisions under financial and material constraints.