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12 Mariengroschen - John Frederick
| Issuer | Brunswick-Lüneburg-Calenberg |
|---|---|
| Year | 1668-1673 |
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| Composition | Log in to see details |
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| Reference(s) | KM#123 |
| Obverse description | Log in to see details |
|---|---|
| Obverse script | Latin |
| Obverse lettering | IOHAN.FRIED.D.G.DUX.BR.ET.LUN* 12 |
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| Additional information |
John Frederick ruled Calenberg from 1665 until his death in 1679, and his coinage reflects the fractured monetary landscape — in the strictest geographic sense — of the post-Westphalian German states, where each principality retained the right to strike independently under the Reichsmünzordnung. The 12 Mariengroschen denomination was peculiar to the Brunswick territories, valued at roughly half a Thaler and widely used in regional trade along the Weser corridor.
John Frederick was notably the first of his line to convert to Catholicism, a politically charged move in a staunchly Lutheran principality that created lasting friction with the Estates.