Sir John Chandos, Viscount of Saint-Sauveur in the Cotentin, Constable of Aquitaine, Seneschal of Poitou, KG (c. 1320 – 31 December 1369) was a medieval English knight who hailed from Radbourne Hall, Derbyshire.
They found that the enemy vessels were ranged in three compact lines and included the captured English prize, the great cog Christopher; the ships were crammed together tightly and anchored at the entrance of the Zwin (also: Zwyn) channel.
In 1369, the French launched a successful counterattack, regaining much territory and forcing Edward to recall Chandos, who was appointed seneschal of Poitou and settled in Poitiers.
The Bretons John Kerlouët and Louis de Saint Julien Trimouille, lord of Lusignan, had occupied La Roche-Posay and Saint-Savin, a few miles from Poitiers.
The planned attack failed when, thinking they had been detected by the enemy, Chandos' force retreated towards the bridge across the Vienne at Lussac-les-Châteaux, along the route to Poitiers through Chauvigny.
James de Saint-Martin, a squire in the house of Sir Bagnac (or Guillaume Boitel, according to Paul Hay du Chastelet) struck Chandos with his lance, piercing his face below the eye.
When the news of Sir John's death reached the court of Edward III in England, and that of the Black Prince at Guyenne, they were greatly upset.
The cenotaph is still maintained and visible in a garden along the street Jean Chandos at a place called "Les Aubeniaux" (commune of Mazerolles (Vienne department).
John Chandos appears as a character in the video game Bladestorm: The Hundred Year War, in which he is seen as the right-hand guardian of Edward, the Black Prince.