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|Duke of Brittany|
|Successor||Alan of Nantes|
|Spouse||Aremburga of Ancenis|
|Issue||Alan, Count of Nantes|
|House||House of Nantes|
Guerech of Brittany, was Count of Nantes and Duke of Brittany from 981 to 988.
Guerech was the second illegitimate son of Alan II and Judith. He succeeded his brother Hoël I upon his death.
Guerech had been brought up at the Abbey of Saint-Benoît-sur-Loire, near Orléans. He was appointed Bishop of Nantes in 981 but was presumably not consecrated. He did not exercise priesthood and it was Hugh (Hugo), who reportedly had the "character of wise and austere life" according to Albertus Magnus, who ruled de facto over the spiritual part of the Church of Nantes. However, Guerech kept the temporal rule of the Bishopric, which he ruled with the County of Nantes for the seven years of his reign as Duke.
He pursued the war his brother had started against the Count of Rennes Conan Le Tort. In 982, Guerech signed a treaty with Count William IV of Poitou, who confirmed the possessions of Nantes south of the Loire — the pagi of Herbauges, Tiffauges and Mauges — which his father Alan II of Brittany had obtained in 942.The following year, Guerech wento to the Court of the King of West Francia, Lothair to pay homage. On the way back, he was stopped by Count Geoffrey I of Anjou, who kept him a prisoner and demanded that Guerech admitted he had received Nantes from the Count of Anjou and became his vassal.
The same year, Guerech's wife Aremburga had a strategic fortress built in Ancenis, the Château d'Ancenis.Conan Le Tort, who had ordered Hoël I's murder according to the Chronicle of Nantes and rightly feared that the Counts of Nantes and Anjou would unite against him, is said to have convinced Guerech's physician, a Heroicus, also Abbot of the Redon Abbey, to poison the Duke.
Like his brother, Guerech died prematurely in 988 and was buried in Redon Abbey.
Guerech had married Aremburga of Ancenis. They had an only son, Alan, who succeeded him as Duke of Brittany but died two years later.
Brittany is a peninsula, historic country and cultural region in the west of modern France, covering the western part of what was known as Armorica during the period of Roman occupation. It became an independent kingdom and then a duchy before being united with the Kingdom of France in 1532 as a province governed as a separate nation under the crown.
The Duchy of Brittany was a medieval feudal state that existed between approximately 939 and 1547. Its territory covered the northwestern peninsula of Europe, bordered by the Atlantic Ocean to the west, and the English Channel to the north. It was also less definitively bordered by the Loire River to the south, and Normandy, and other French provinces, to the east. The Duchy was established after the expulsion of Viking armies from the region around 939. The Duchy, in the 10th and 11th centuries, was politically unstable, with the dukes holding only limited power outside their own personal lands. The Duchy had mixed relationships with the neighbouring Duchy of Normandy, sometimes allying itself with Normandy, and at other times, such as the Breton-Norman War, entering into open conflict.
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Alan II, nicknamed Wrybeard or Twistedbeard, Alan Varvek in Breton, was Count of Vannes, Poher, and Nantes, and Duke of Brittany from 938 to his death. He was the grandson of King Alan the Great by Alan's daughter and her husband Mathuedoï I, Count of Poher. He expelled the Vikings/Norsemen from Brittany after an occupation that lasted from 907 to about 939.
Conan I nicknamed Le Tort was the Duke of Brittany from 990 to his death.
Yves Lainé is a Breton lawyer, politician and companies executive manager, now a writer, arguing for the return of Loire-Atlantique departement in the administrative région of Brittany the reunification and devolution of the historical Brittany.
The counts of Nantes were originally the Frankish rulers of the Nantais under the Carolingians and eventually a capital city of the Duchy of Brittany. Their county served as a march against the Bretons of the Vannetais. Carolingian rulers would sometimes attack Brittany through the region of the Vannetais, making Nantes a strategic asset. In the mid-ninth century, the county finally fell to the Bretons and the title became a subsidiary title of the Breton rulers. The control of the title by the Breton dukes figured prominently in the history of the duchy. The County of Nantes was given to Hoel, a disinherited son of a duke. He lost the countship due to a popular uprising. That uprising presented an opportunity for King Henry II of England to attack the Breton duke. In the treaty ending their conflicts, the Breton duke awarded the county to Henry II.
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Redon Abbey, or Abbey of Saint-Sauveur, Redon, in Redon in the present Ille-et-Vilaine, Brittany, France, is a former Benedictine abbey founded in 832 by Saint Conwoïon, at the point where the Oust flows into the Vilaine, on the border between Neustria and Brittany.
Hoël I of Brittany was an illegitimate son of Alan II and Judith. He was Count of Nantes and Duke of Brittany from 960 to 981.
Alan was the only known son of Guerech, Duke of Brittany, and Aremberg. With his mother he founded the castle of Ancenis around 987, according to the Chronicle of Nantes. In 988, he succeeded his father as Count of Nantes and perhaps nominal Duke of Brittany, after his father was murdered by Count Conan I of Rennes. The following two years were marked by endless warfare between Rennes and Nantes. In 990, Alan died, either of an illness or else killed by Conan, who took Nantes and had himself proclaimed Duke of Brittany by the bishop of Nantes, Orscand de Vannes.
Budic of Nantes was Count of Nantes from 1005 to his death in 1038.
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Judith of Nantes was titular Countess of Nantes from 1051 to her death in 1063.
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This article needs additional citations for verification .(October 2016)
Guerech's life, as well as his brother Hoël's, is mainly known through the Chronicle of Nantes , compiled in the 11th century and which is unfavourable to the Bretons in general and to the inhabitants of Rennes in particular.