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The Duchy of Saxe-Marksuhl was one of the Saxon Duchies held by the Ernestine line of the Wettin Dynasty. Established in 1662 for John George I, third son of Wilhelm, Duke of Saxe-Weimar. Originally John George was supposed to share Saxe-Eisenach with his older brother, Adolf William. Johann Georg finally accepted the receipt of an income from the duchy of Saxe-Eisenach and made his residence in the small town of Marksuhl. Saxe-Marksuhl was reincorporated into Saxe-Eisenach on the accession of John George to the Duchy of Saxe-Eisenach upon his nephew's death in 1671.
Michael, edited by George S. Cuhaj; market analyst, Thomas (2011). Standard catalog of world coins (Fifth ed.). p. 1651. ISBN9781440217241. {{cite book}}: |first1= has generic name (help)CS1 maint: multiple names: authors list (link)