William was the son of Hugh de Ros and Matilda Bruce. The date and place of his birth have not been found.
He died in 1372. The place is not known.
His wife was Màiri MacDonald. They were married, but the date and place have not been found. Their only known child was Eupheme (?->1394).
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William III de Ros |
Hugh de Ros |
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Matilda Bruce |
Robert VIII de Brus |
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Elizabeth de Burgh |
Richard de Burgh |
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Margaret de Burgh |
| Event | Date | Details | Source | Multimedia | Notes |
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| Death | 1372 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | FROM 1333 TO 1370 | mormaer of Ross 5° |