The 3 arrondissements of the Côte-d'Or department are:[1] In 1800 the arrondissements of Dijon, Beaune, Châtillon-sur-Seine and Semur-en-Auxois were established.
In 1926 the arrondissement of Châtillon-sur-Seine was disbanded, and Montbard replaced Semur-en-Auxois as subprefecture.
[2] In January 2017 31 communes that were previously part of the arrondissement of Dijon were assigned to the arrondissement of Beaune.
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