The Siege of Rennes was an episode in the War of the Breton Succession.
The War of the Breton Succession was a conflict between the Counts of Blois and the Montforts of Brittany for control of the Duchy of Brittany.
The Siege of Rennes was an episode in a conflict between the Counts of Blois and the Montforts of Brittany for control of the Duchy of Brittany.