Family: 4th Lord Helmsley, 5th Baron de Ros Sir Thomas de Ros / Beatrice de Burley (F5101)
m. 1 Jan 1359Drag or scroll to see more of the chart.
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 | 2nd Lord Ros, Knight of Helmsley and Hunsingore, Yorkshire, Wark, Northumberland Sir William de Ros (1288-1343)
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 | Margery de Badlesmere (1306-1363)
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| Maud de Ros (1334-1388)  |
| Beatrice de Burley (1337-1415) |
| Lady Elizabeth de Ros (1363-1424) |