From the Wikipedia page 
Cher (French pronunciation: [ʃɛʁ]; Berrichon: Char) is a department in the Centre-Val de Loire region of France. It is named after the Cher River.
Cher is one of the original 83 departments created during the French Revolution on 4 March 1790. Most of it was created, along with the adjacent department of Indre from the former province of Berry. The southeastern corner of the department, however, was part of the Duchy of Bourbon.