Guillaume was the son of Othon IV de la Roche and Elisabeth de Chappes. The date and place of his birth have not been found.
His wife was NN de Veligosti. They were married, but the date and place have not been found. They had no known children.
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Othon IV de la Roche |
Pons II de la Roche |
Othon de la Roche |
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