World of HYDE
Discovering our Ancestors and their descendants to all parts of the world. Last updated 15th March 2026.
Family: Sir Henry De Percy, 2nd Baron Of Percy / Lady Idonea De Clifford, Baroness Percy (F16014)
m. Abt 1318
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 | Sir Henry De Percy, II (1273-1314)
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 | Eleanor Fitzalan (1284-1328)
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| William De Percy (1301-1355)  |
| William De Pressene (1303-1355) |
| Jane De Percy (1314- ) |
| Robert De Clifford, I. 2nd Baron De Clifford (1274-1314)
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| Lady Maud De Clare, Baroness Clifford (1276-1327)
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| Roger De Clifford (1300-1322) |
| Margaret de Clifford (1302-1382) |
| Adam Clifford (1304- ) |
| Lord Robert De Clifford, 3rd Baron De Clifford (1305-1344) |
| John De Clifford (1307- ) |
| Andrew Clifford (1309- ) |
| Sir Henry De Percy, 2nd Baron Of Percy (1301-1351)
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| Lady Idonea De Clifford, Baroness Percy (1301-1365)
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| Maud Percy (1318-1379) |
| Maud Percy (1344-1379) |
| Sir Henry De Percy, 3rd Lord Of Alnwick And 11th Baron Warden Of The Marches High Sheriff Of Northumberland (1322-1368) |
| Eleanor De Percy (1326-1368) |
| Isabell De Percy (1326-1368) |
| William De Percy (1327-1387) |
| Thomas De Percy, Bishop Of Norwich (1328-1369) |
| Jane Percy (1335- ) |