Trizay-Coutretot-Saint-Serge

Champrond-en-Perchet is a commune in the Eure-et-Loir department in northern France.

Souancé-au-Perche (French pronunciation: [swɑ̃se o pɛʁʃ]) is a commune in the Eure-et-Loir department in northern France.

Saint-Jean-Pierre-Fixte is a commune in the Eure-et-Loir department in northern France.

Brunelles (French pronunciation: [bʁynɛl]) is a former commune in the Eure-et-Loir department in northern France. On 1 January 2019, it was merged into the new commune Arcisses.

Vichères (French pronunciation: [viʃɛʁ]) is a commune in the Eure-et-Loir department in northern France.

The Château Saint-Jean is a castle in the commune of Nogent-le-Rotrou in the Eure-et-Loir département of France.

Margon (French pronunciation: [maʁɡɔ̃]) is a former commune in the Eure-et-Loir department in northern France. On 1 January 2019, it was merged into the new commune Arcisses.

Arcisses (French pronunciation: [aʁsis]) is a commune in the Eure-et-Loir department in northern France. It was established on 1 January 2019 by merger of the former communes of Margon (the seat), Brunelles and Coudreceau.

Nogent-le-Rotrou (French: [nɔʒɑ̃ lə ʁɔtʁu]) is a commune in the Eure-et-Loir department in northern France. It is a sub-prefecture and is located on the river Huisne, 56 kilometres west of Chartres on the RN23 and 150 kilometres south west of Paris, to which it is linked by both rail and motorway. It was the former capital of the Perche with the count living in the impressive medieval Château Saint-Jean which still dominates the town from a plateau of the same name.

The canton of Nogent-le-Rotrou is an administrative division of the Eure-et-Loir department, northern France. Its borders were modified at the French canton reorganisation which came into effect in March 2015. Its seat is in Nogent-le-Rotrou.It consists of the following communes: