The Ernestine duchies, also called the Saxon duchies (although also the Albertine appanage duchies of Weissenfels, Merseburg and Zeitz were "Saxon duchies" and located adjacent to several Ernestine ones), were a changing number of small states largely located in the present German state of Thuringia, governed by dukes of the Ernestine line of the House of Wettin.
Read more about Ernestine Duchies: Overview, Background Before Ernestine Branch Came Into Being, Ernestine Duchies, Ernestine Dukes Today