Hengoat

Pouldouran (French pronunciation: [pulduʁɑ̃]; Occitan: Pouldouran) is a former commune in the Côtes-d'Armor department of Brittany in northwestern France. On 1 January 2019, it was merged into the new commune La Roche-Jaudy.

Ploëzal (French pronunciation: [plɔezal]; Breton: Pleuzal) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Troguéry (French pronunciation: [tʁɔɡeʁi]; Breton: Trogeri) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Trédarzec (French pronunciation: [tʁedaʁzɛk] ; Breton: Tredarzeg) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Minihy-Tréguier (French pronunciation: [mini.i tʁeɡje]; Breton: Ar Vinic'hi) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Pommerit-Jaudy (French pronunciation: [pɔmʁit ʒodi]; Breton: Peurid-ar-Roc'h) is a former commune in the Côtes-d'Armor department of Brittany in northwestern France. On 1 January 2019, it was merged into the new commune La Roche-Jaudy.

The Château de la Roche-Jagu is a 15th-century fortified house located in the commune of Ploëzal in the Côtes-d'Armor, Brittany, France. Since 1958, it has been owned and managed by the Council of the department of the Côtes-d'Armor who restored the château in 1968. Its extensive grounds are managed as a public park and the château itself houses exhibitions, concerts and other public events. Its situation on a steep promontory on the west bank of the estuary of the Trieux, gives it a commanding view of the surrounding area and in particular of the river which it was historically able to monitor and control movement on.

Runan (French pronunciation: [ʁynɑ̃] ; Breton: Runan) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Notre-Dame de Runan is a Catholic church built between the late 14th and mid-16th centuries. It is located in the commune of Runan in the French department of Côtes-d'Armor in Brittany. The building of the church benefited from the protection of the Dukes of Brittany, the commanderies of Le Palacret and La Feuillée of the Hospitallers of Saint John of Jerusalem, and the patronage of the local aristocracy. All these sponsors left their mark on the building's decoration: the Dukes of Brittany granted fairground privileges that enabled several campaigns of work to be financed; local nobles supported the construction of the bell tower-porch and the main window in 1423; and the Hospitaller Commander Pierre de Keramborgne financed the renovation of the south aisle, with the seigniorial chapel, and the southern portal with its sculpted portal in 1438. The most important elements are the gabled southern front with its sculpted portal and the main window, whose tympanum bears the coat of arms and motto of Duke John V above lancets housing holy figures in front of precious hangings. These saints surmount the coats of arms of the local nobles who financed the stained glass. The church was listed as a historic monument on December 19, 1907.

Tréguier (French pronunciation: [tʁegje] ; Breton: Landreger) is a port town in the French department of Côtes-d'Armor, Brittany, northwestern France. It is the capital town of the province of Trégor.

Tréguier Cathedral (French: Cathédrale Saint-Tugdual de Tréguier) is a Roman Catholic church and former cathedral in Tréguier, Côtes-d'Armor, France. It is dedicated to Saint Tudwal. The church was formerly the seat of the Bishopric of Tréguier, abolished under the Concordat of 1801, when its territories were divided between the Diocese of Quimper and the Diocese of Saint-Brieuc, known since 1852 as Saint-Brieuc-Tréguier.

The former Breton and French diocese of Tréguier existed in Lower Brittany from about the sixth century, or later, to the French Revolution. Its see was at Tréguier, in the modern department of Côtes-d'Armor. The title continues in the contemporary diocese of Saint-Brieuc and Tréguier.