Samtgericht Frenz.................. (prior to 1812)
Gericht Großbadegast.......... (prior to 1812)
Samtgericht Kleinbadegast (prior to 1812)
Amt and Stadt Köthen........ (from 1812 on)
Amt Köthen (including the Stadt) was one of the original Ämter assigned to Anhalt-Köthen when the Principality of Anhalt was divided in 1606. It remained the core of that principality/duchy until 1853, when it was absorbed by Anhalt-Dessau.
Gericht Großbadegast, which consisted entirely of the village of that name, was unique in that it was owned by one of the other princes—namely, the Prince of Anhalt-Dessau. Prior to 1812, I render its simplified country name as Anhalt-Köthen-Dessau—named after both the sovereign and the owner. Once the village was formally absorbed into Amt Köthen, however, I disregard the ownership of Anhalt-Dessau.
List of villages in Amt Köthen prior to 1812
- Arensdorf 1606 - 1812
- Baasdorf 1606 - 1812
- Breesen 1606 - 1812
- Edderitz 1606 - 1812
- Geuz 1606 - 1812
- Großpaschleben 1606 - 1812
- Großwülknitz 1606 - 1812
- Hohnsdorf 1785 - 1812
- Kleinelsdorf 1606 - 1812
- Kleinwülknitz 1606 - 1812
- Kleinzerbst 1606 - 1812
- Klepzig 1606 - 1812
- Köthen 1606 - 1812
- Libehna 1784 - 1812
- Locherau 1784 - 1812
- Osternienburg 1606 - 1812
- Pfriemsdorf 1785 - 1812
- Pißdorf 1606 - 1812
- Porst 1606 - 1812
- Priesdorf 1606 - 1812
- Prosigk 1606 - 1812
- Sibbesdorf 1606 - 1812
- Thurau 1606 - 1812
- Trebbichau a.d. Fuhne 1606 - 1812
- Trebbichau b. Wulfen 1606 - 1812
- Wenndorf 1786 - 1812
- Wörbzig 1786 - 1812
- Würflau 1606 - 1812
- Zabitz 1606 - 1812
List of villages in Samtgericht Frenz
- Frenz 1606 - 1812
- Trinum 1606 - 1812
- Wenndorf 1606 - 1786
- Wörbzig 1606 - 1786
List of villages in Samtgericht Kleinbadegast
- Kleinbadegast 1606 - 1812
- Libehna 1606 - 1784
- Locherau 1606 - 1784
- Pfriemsdorf 1606 - 1785
All of the villages in the two Samtgerichte became part of Amt Köthen in 1812, as did the single-village Gericht of Großbadegast and the village of Ziebigk (transferred from Gericht Reinsdorf). However, twelve villages that were in Amt Köthen prior to 1812 were transferred to other Ämter—three to Amt Reinsdorf and nine to Amt Wulfen. That resulted in the following constitution of Amt Köthen in 1812:
List of villages in Amt Köthen from 1812 on
- Arensdorf 1812 - 1863
- Baasdorf 1812 - 1863
- Edderitz 1812 - 1863
- Frenz 1812 - 1863
- Geuz 1812 - 1863
- Großbadegast 1812 - 1863
- Großpaschleben 1812 - 1863
- Großwülknitz 1812 - 1863
- Kleinbadegast 1812 - 1863
- Kleinwülknitz 1812 - 1863
- Köthen 1812 - 1863
- Libehna 1812 - 1863
- Locherau 1812 - 1863
- Pfriemsdorf 1812 - 1863
- Prosigk 1812 - 1863
- Trinum 1812 - 1863
- Wenndorf 1812 - 1863
- Wörbzig 1812 - 1863
- Ziebigk 1812 - 1863
Chronological list of countries to which Amt Köthen belonged
- Principality of Anhalt-Köthen 1606 - 1806
- Duchy of Anhalt-Köthen 1806 - 1853
- Duchy of Anhalt-Dessau 1853 - 1863
Chronological list of countries to which Gericht Großbadegast belonged
- Principality of Anhalt-Köthen (adm. Anhalt-Dessau) 1606 - 1806
- Duchy of Anhalt-Köthen (adm. Anhalt-Dessau) 1806 - 1812
- Duchy of Anhalt-Köthen 1812 - 1853
- Duchy of Anhalt-Dessau 1853 - 1863