Arnaud was the son of Bernard IV de Comminges and Comtors de la Barthe. The date and place of his birth have not been found.
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Bernard IV de Comminges |
Dodon III de Samatan |
Bernard III de Comminges |
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Diaz de Samatan |
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Alphonse Jourdain |
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Arnaud-Guillaume I de la Barthe |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | évêque de Comminges |