Guy I, Count of Blois
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Guy I of Blois-Châtillon (d. August 12, 1342), son of Hugh II of Châtillon and Beatrix of Dampierre, was count of Blois and lord of Avesnes 1307–1342.
In 1310, he married Marguerite of Valois, daughter of Charles of Valois and sister of Philip VI of France. They had three children:
- Louis I of Châtillon (d. 1346)
- Charles of Blois (d. 1364)
- Marie, married in 1334 Rudolph, Duke of Lorraine (d. 1346), married secondly Frederick VII, Count of Leiningen-Dagsburg.
He took part in the expedition of Louis X of France against his uncle Robert III of Flanders in 1315, and in the early stages of the Hundred Years' War.
| Preceded by Hugh II |
Count of Blois 1307–1342 |
Succeeded by Louis II |
