Family: John de Mowbray, 4th. Baron Mowbray / Elizabeth de Segrave (F2519)
Sir John de Segrave (1315-1353) |
Margaret of Brotherton, Duchess of Norfolk (1320-1399) 
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| John de Mowbray, 4th. Baron Mowbray (1340-1368) |
| Elizabeth de Segrave (1338-1368)
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Thomas de Mowbray, 1st. Duke of Norfolk (1366-1399)  |