1 Thaler - John III

Rietberg's 1621 thaler falls squarely in the opening years of the Thirty Years' War, when the small Westphalian county found itself caught between competing military forces moving through the region. John III — Johann III von Ostfriesland — ruled Rietberg from 1618 until his death in 1625, a tenure almost entirely consumed by the war's early devastation. Minor German territories issued thalers partly to assert jurisdictional standing and partly to pay troops; the line between those two motives in Rietberg's case is not easily drawn.

Davenport's attribution under ST#7320 places this among the subsidiary Westphalian series rather than the major electoral issues — a classification that reflects Rietberg's limited but documented minting activity during this period.