Olivier IV de Clisson

Olivier IV de Clisson,
Breton Lord and Knight
Coat of Arms Clisson Family
Bornaround 1300
Château de Clisson, Brittany
Died2 August 1343
Paris
NationalityBreton
Noble familyde Clisson
SpousesBlanche de Bouville
Jeanne de Belleville (Lioness of Brittany)
IssueJean de Clisson
Isabeau de Clisson
Maurice de Clisson
Olivier V
Guillaume de Clisson
Jeanne de Clisson
FatherOlivier III de Clisson
MotherIsabelle de Craon

Olivier IV de Clisson (c. 1300–1343) was a Breton Marche Lord and knight who became embroiled in the intrigue of Vannes during the War of the Breton Succession and was subsequently executed by the King of France for perceived treason. He was the husband of Jeanne de Clisson, who upon his death mounted a campaign of vengeance by which she became known as the "Lioness of Brittany".