Orne is a département in the northwest of France, named after the river Orne. It had a population of 279,942 in 2019.

Perche is a former province of France, known historically for its forests and, for the past two centuries, for the Percheron draft horse breed. Until the French Revolution, Perche was bounded by four ancient territories of northwestern France: the provinces of Maine, Normandy, and Orléanais, and the region of Beauce. Afterwards it was absorbed into the present-day departments of Orne and Eure-et-Loir, with small parts in the neighboring departments of Eure, Loir-et-Cher, and Sarthe.