Jeanne Louise de Belleville, de Clisson
|Nationality||Born French, married Breton|
|Other names||Jeanne de Belleville|
|Spouse(s)||Geoffrey de Châteaubriant VIII|
Guy de Penthièvre
Olivier IV de Clisson
Sir Walter Bentley
|Children||Geoffrey IX de Châteaubriant, Louise de Châteaubriant, Isabeau de Clisson, Maurice de Clisson, Olivier V de Clisson, Guillaume de Clisson and Jeanne de Clisson|
|Nickname||Lioness of Brittany|
|Allegiance||First allegiance: Party of Blois:|
|Years active||c. 1343 – c. 1356|
|Commands||Black Fleet; My Revenge|
Jeanne de Clisson (1300–1359), also known as Jeanne de Belleville and the Lioness of Brittany, was a French / Breton former noblewoman who became a privateer to avenge her husband after he was executed for treason by the French king. She crossed the English Channel targeting French ships and often slaughtering their crew. It was her practice to leave at least one sailor alive to carry her message of vengeance to the King of France.
Jeanne Louise de Belleville, de Clisson, Dame de Montaigu, was born in 1300 in Belleville-sur-Vie in the Vendée, a daughter of nobleman Maurice IV Montaigu of Belleville and Palluau (1263–1304) and Létice de Parthenay of Parthenay (1276–?) in the Gâtine Vendéenne.
Her father died when she was four years old and there are no known records that her mother remarried. It also appears she was born from her father's second marriage as some records suggest he was previously married to Sibille of Chateaubriant. This alliance had apparently produced a son, Maurice V Montaigu. In 1337, on the death of her half-brother, Maurice V, she inherited the seigneury of Montagu and that of Belleville as he had no heirs.
As a seigneur family in the Bas-Poitou area, the de Montaigu family would have had direct or indirect business with wine making, salt farming and the merchant movements of these goods to and from markets as far as the Iberian Peninsula up towards England. This would have included contacts with merchant shipping.
In 1312, Jeanne married her first husband, 19-year-old Geoffrey de Châteaubriant VIII (died 1326), a Breton nobleman, who himself was already a widower to Alix de Thouars. They had two children:
In 1328, Jeanne married Guy de Penthièvre of the House of Penthièvre, widower of Joan of Avaugour and son of the Duke of Brittany. Jeanne may have done this to protect her underage children.
The union was short-lived, as relatives of the Ducal family—in particular, from the de Blois faction—laid a complaint with the bishops of Vannes and Rennes to protect their heritage, and an investigation was conducted on February 10, 1330, resulting in the marriage being annulled by Pope John XXII.
Guy then married into the de Blois faction to Marie de Blois, who was also a niece of Phillip VI of France. Guy, however, unexpectedly died on 26 March 1331, and his heritage passed to his daughter Jeanne of Penthièvre.
In 1330, Jeanne married Olivier IV de Clisson, a wealthy Breton, holding a castle at Clisson, a manor house in Nantes and lands at Blain. Olivier was initially married to Blanche de Bouville (died 1329).
Jeanne, a recent widow herself of the Lord of Chateaubriant, controlled areas in Poitou just south of the Breton border from Beauvoir-sur-Mer in the west to Châteaumur in the southeast of Clisson. In the marriage contract, there is evidence of Jeanne ensuring the inheritances of her children from her previous marriage was legally secured. Combining these assets made Jeanne and Olivier the seigneurial power (senior Lord of an area) in the border region of Brittany. Jeanne and Olivier eventually had five children:
Jeanne at one stage took Olivier to court with regard to access to remuneration from his estates as had been agreed upon in the marriage contract. This case was heard by King Philip VI, who found in her favour, as witnesses confirmed such promises had occurred. It appears this issue was resolved amicably.
During the Breton War of Succession, the de Clissons sided with the French choice for the empty Breton ducal crown, Charles de Blois, against the English preference, John de Montfort. The extended de Clisson family was not in full agreement in this matter, and Olivier IV's brother, Amaury de Clisson, embraced the de Montfort party. In January 1342, the de Clisson castle of Blain was chosen as headquarters by Robert Bertrand. The French King's Lieutenant sent to aid Charles de Blois.
In 1342, the English, after four attempts, captured the city of Vannes. Jeanne's husband Olivier and Hervé VII de Léon, the military commanders defending this city, were captured. Olivier was the only one released after an exchange for Ralph de Stafford, 1st Earl of Stafford (a prisoner of the French), and a surprisingly low sum was demanded. This led Olivier to be subsequently suspected of not having defended the city to his fullest and was alleged by Charles de Blois to be a traitor.
On 19 January 1343, the Truce of Malestroit was signed between England and France. Under the perceived safe conditions of this truce, Olivier and fifteen other Breton and Norman lords were invited to a tournament on French soil, where he was subsequently arrested, taken to Paris and tried by his peers.
Jeanne tried in vain to have him set free. She seems to have tried to bribe a King's sergeant. Jeanne was therefrore summoned to now answer charges of rebellion, disobediance and excesses against the King. She ignored the summons and was found guilty in absentia in June 1343.
On the 2nd August 1343, Olivier IV was executed by beheading at Les Halles.
In the year of our Grace one thousand three hundred and forty-three, on Saturday, the second day of August, Olivier, Lord of Clisson, knight, prisoner in the Chatelet of Paris for several treasons and other crimes perpetrated by him against the king and the crown of France, and for alliances that he made with the king of England, enemy of the king and kingdom of France, as the said Olivier ... has confessed, was by judgement of the king given at Orleans drawn from the Chatelet of Paris to Les Halles ... and there on a scaffold had his head cut off. From there, his corpse was drawn to the gibbet of Paris and there hanged on the highest level, and his head was sent to Nantes in Brittany to be put on a lance over the Sauvetout gateas a warning to others.
This execution shocked the nobility as the evidence of guilt was not publicly demonstrated, and the process of desecrating/exposing a body was reserved mainly for low-class criminals. This execution was judged harshly by Jean Froissart and his contemporaries.
On 26 August 1343, for her attempted bribery of the king's sergeant, Jeanne was charged with the crime of Lèse-majesté, subsequently sentenced to banishment and confiscation of her property. She managed to evade arrest as she was being protected by Jean de Clisson, Olivier's eldest son; Guilaume Bérard, Jeanne's squire and valet; Guionnet de Fay; and Guillaume Denart.
Jeanne took her two young sons, Olivier and Guillaume, from Clisson to Nantes, to show them the head of their father displayed at the Sauvetout gate.
Jeanne, enraged by her husband's execution, swore retribution against the French King, Philip VI, and Charles de Blois. She considered their actions a cowardly murder.
After the execution of Olivier, Jeanne sold the de Clisson estates, raised a force of about 400 loyal men and started attacking French forces in Brittany. Jeanne is said to have attacked:
With the English king's assistance and Breton sympathizers, Jeanne outfitted three warships. These were painted black and their sails dyed red. The flagship was named My Revenge.
The main sailing ships available in Brittany at that time were of the cog type (a flat-bottomed cargo ship with high sides and distinctive straight angled stem and stern post). The most visible give away that a ship was no longer just meant for cargo was if it had a forecastle or aft castle constructed on it. Not all of these were permanent in structure and were not integrated into the hull. 
The ships of this Black Fleet are said to initially attack shipping in the Bay of Biscay, but then moved into the English Channel hunting down French commerce ships, whereupon her force would kill entire crews, leaving only a few witnesses to transmit the news to the French King. This earned Jeanne the moniker "The Lioness of Brittany". The type of warfare is termed commerce raiding and is similar to guerilla warfare on land. Its main intent is to destroy or disrupt the logistics of an enemy on the open seas by attacking merchant shipping rather than engaging actual combatants. A few ships together would be used together in the employment of a swarming tactic. The crews would be equipped with grappling equipment for closing in and weapons such as crossbows, swords, and daggers. 
The Gironde estuary, the Breton coast near Saint Mathieu, the Charente estuary and the islands of Oléron, Re, and Aix were known to be especially dangerous since confined waters made it easier for ships to be outmaneuvered and surprised. The Pointe du Raz was an especially good spot to conduct piracy since these waters were dotted with numerous small often uninhabited islands which were ideal for ambushes. Jeanne is also said to have attacked coastal villages in Normandy and have put several to sword and fire.
Jeanne is sometimes cited as a privateer of the English which would mean she would operate under certain protections and obligations. No letter patent or royal letter of protection is known to exist. In 1346, during the Crécy campaign in northern France, Jeanne used her ships to supply the English forces.
The French eventually managed to engage her fleet and sink her flagship. Jeanne and her two sons were adrift for five days; her son Guillaume died of exposure. Jeanne and Olivier were finally rescued and taken to Morlaix by Montfort supporters. Jeanne continued her piracy in the channel for another 13 years. 
It must be noted that both sides employed pirates and operated with royal permission to prey on each other's shipping.
In the 1350s, Jeanne married for a fourth time to Walter Bentley, one of King Edward III's military deputies during the campaign. Bentley had been appointed Edward's Lieutenant in Brittany in September 1350. In 1351, he had lifted the sieges of Ploërmel and Fougeres and on 4 August 1352, Bentley won the Battle of Mauron and was rewarded for his services with "the lands and castles" Beauvoir-sur-mer, of Ampant, of Barre, Blaye, Châteauneuf, Ville Maine, the island of Chauvet and from the islands of Noirmoutier and Bouin.
Raoul de Caours, Edward III's Lieutenant in the neighbouring province of Poitou, had wrested control of several of Jeanne's properties from the French. In 1349, Edward III ordered that the estates be returned to Bentley, but this changed when Edward III changed allegiances and started negotiating with the new Duke of Brittany, Charles.
As part of a treaty with Charles, Duke of Brittany, Edward III ordered Bentley to surrender Jeanne's remaining castles in Brittany. Bentley refused and traveled to England to plead their case. He was imprisoned in the Tower of London while his case was heard. Eventually he was released and allowed to return.  At this point the war had come to a halt as both nations were exhausted, one of the main factors being the spread of the Black Plague which had decimated at least 20 percent of the population.
By January 1357, Walter and Jeanne were granted the barony of La Roche-Moisan as compensation. 
Jeanne finally settled at the Castle of Hennebont, a port town on the Brittany coast, which had been in the territory of her de Montfort allies. Walter died in December 1359 and Jeanne a few weeks later.
Verifiable references relating to Jeanne's exploits exist. These include:
The Belleville lands were part of a lawsuit when her daughter Louise from her first marriage attempted to prohibit the King from redistributing the family's lands following their confiscation and another lawsuit from Louise's widower who also attempt to prevent this. 
In 1868, French-Breton writer Émile Pehant's novel Jeanne de Belleville was published in France. Written at the height of the French romantic movement, Pehant's novel shares many details with the legend attached to Jeanne.
On 24 September 1999, the City Council of Nantes named a street in honour of Jeanne: "A route beginning in the Embellie street is to be named: Rue Jeanne la Corsaire, wife of Olivier de Clisson, 1300 -1359."