Jeanne de Belleville, dame de Montaigu

Jeanne de Clisson, a French noblewoman turned pirate who was known as the scourge of the Normandy coast during the early years of the Hundred Years War, in the mid-14th century. With a fleet of only three ships painted black with red sails, she would go down in history as one of the most vicious pirates of her time.

Jeanne de Clisson (1300–1359), also known as the Lioness of Brittany, was a feared Breton pirate who plied the English Channel for French ships from 1343 to 1356.

She was born Jeanne-Louise de Belleville, Dame de Montaigu, the daughter of Maurice IV of Belleville-Montaigu and Létice de Parthenay, in 1300. At the age of 12, she was married to 19-year-old Geoffrey de Châteaubriant, by whom she had two children, Louise and Geoffrey. In 1326, the marriage ended with the death of Châteaubriant. Four years later, in 1330, Jeanne married secondly Olivier III de Clisson. This union was an especially close one; Olivier and Jeanne were of an age and seemingly content, as they had five children together: Maurice, Guillaume, Olivier, Isabeau (died 1343) and Jeanne.

She was born Jeanne-Louise de Belleville, Dame de Montaigu, the daughter of Maurice IV of Belleville-Montaigu and Létice de Parthenay, in 1300. At the age of 12, she was married to 19-year-old Geoffrey de Châteaubriant, by whom she had two children, Louise and Geoffrey. In 1326, the marriage ended with the death of Châteaubriant. Four years later, in 1330, Jeanne married secondly Olivier III de Clisson. This union was an especially close one; Olivier and Jeanne were of an age and seemingly content, as they had five children together: Maurice, Guillaume, Olivier, Isabeau (died 1343) and Jeanne. Olivier was also a wealthy nobleman, holding a castle at Clisson, a manor house in Nantes and lands at Blain, therefore in 1342 he joined Charles de Blois in defending Brittany against the English claimants, and the forces of English sympathiser John de Montfort.

During the Breton War of Succession, Olivier came under suspicion and criticism from Charles de Blois for failing to hold Vannes against the English forces, and so he defected to the English side. In the summer of 1343, while he was attending a tourney in French territory, Olivier was arrested and taken to Paris for trial. Fifteen of his peers, including his friend Charles de Blois, found him guilty of treason and on 2 August 1343, he was executed by beheading at Les Halles, on the orders of King Philip VI. Olivier's head was then sent to Nantes and displayed on a pole outside the castle of Bouffay. Jeanne de Clisson, enraged and bewildered over her husband's execution, swore revenge on the King, and Charles de Blois in particular. She sold off the remnants of the Clisson lands to raise money, whereupon she bought three warships, and the aid of many of the lords and people of Brittany to ensure their independence.

The ships that Clisson purchased were painted all black on her command, and the sails dyed red. The 'Black Fleet' took to the waters and began hunting down and destroying the ships of King Philip VI, and were merciless with the crews. But Clisson would always leave two or three of Philip's sailors alive, so that the message would get back to the King that the “Lioness of Brittany” had struck once again. Jeanne and her fleet also assisted in keeping the English Channel free of French warships, and it is very likely that as a privateer she had a hand in keeping supplies available to the English forces for the Battle of Crécy in 1346. When King Philip VI died in 1350, it was not the end to Jeanne's revenge. She continued to wreak havoc among French shipping, and it was reported that she took particular joy in hunting down and capturing the ships of French noblemen, as long as they were aboard. She would then personally behead the aristocrats with an axe, tossing their lifeless bodies overboard.

In 1356, after 13 years of piracy, Clisson took refuge in England and married Sir Walter Bentley, a lieutenant to the English King Edward III during the fighting against Charles de Blois. She later returned to France, but resided in Hennebont as Blain was closed to her and the lands given to Louis de Poitiers after Olivier III's execution. Her son Olivier later returned to Brittany and fought in the War of Breton Succession.

Jeanne de Clisson is said to have died in 1359.