Guillaume was the son of Robert I de Courtenay and Mahaut de Mehun-sur-Yèvres. The date and place of his birth have not been found.
He died in 1282. The place is not known.
His wife was Marguerite I de Chalon, who he married in ABT 1250. The place has not been found. They had no known children.
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Guillaume de Courtenay |
Robert I de Courtenay |
Pierre I Capet |
Louis VI Capet |
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Adélaïde de Savoie |
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Élisabeth de Courtenay |
Renaud de Courtenay |
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Hélène du Donjon |
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Mahaut de Mehun-sur-Yèvres |
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| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | 1282 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | seigneur de Champignelles |