Individual Details
John De Brienne I
( - )
Events
| Death |
Families
| Spouse | Agnes De Beaumont (1270 - ) |
| Child | Henry De Beaumont De Beaumont 4th Earl of Buchan, Jure Uxoris (1285 - 1339) |
| Mother | Agnes De Beaumont (1270 - ) |
( - )
| Death |
| Spouse | Agnes De Beaumont (1270 - ) |
| Child | Henry De Beaumont De Beaumont 4th Earl of Buchan, Jure Uxoris (1285 - 1339) |
| Mother | Agnes De Beaumont (1270 - ) |