Sound Dues

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You can help expand this article with text translated from the corresponding article in Danish. (June 2023) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Danish Wikipedia article at [[:da:Øresundstolden]]; see its history for attribution. You may also add the template {{Translated|da|Øresundstolden}} to the talk page. For more guidance, see Wikipedia:Translation.

The Sound Dues (or Sound Tolls; Danish: Øresundstolden) were a toll on the use of the Øresund, or "Sound" strait separating the modern day borders of Denmark and Sweden. The tolls constituted up to two thirds of Denmark's state income in the 16th and 17th centuries. The dues were introduced by King Eric of Pomerania in 1429 and remained in effect until the Copenhagen Convention of 1857 (with the sole exception of Swedish ships between 1660 and 1712). Tolls in the Great Belt had been collected by the Danish Crown at least a century prior to the establishment of the dues by Eric of Pomerania.^[1]