Obol - Béla IV

Béla IV's reign was defined almost entirely by the Mongol invasion of 1241–42, which devastated Hungary so thoroughly that contemporaries estimated the population loss at roughly half. The kingdom's minting activity was severely disrupted during this period, and small silver fractions like this obol were among the first issues resumed as Béla rebuilt royal infrastructure from near-total collapse.

Post-invasion coinage under Béla is notoriously difficult to sequence chronologically within the reign's 35-year span.