Alan IV Fergen Duke of Brittany
1072 - 1119 (47 years)(Notes: You may have to scroll down or right to see chart.)
| Roger La Zouche | |
| B: | 1166 |
| Ashby Zouche, Leicestershire, England | |
| Margaret | |
| B: | cir 1166 |
| Alan La Zouche Earl of Brittany | |
| B: | 1136 |
| Harringworth, Northamptonshire, England | |
| D: | 1190 |
| North Molton, Devon, England | |
| Alice De Belmeis | |
| B: | 1140 |
| Hawise Fergant | |
| B: | 1116 |
| Geoffrey Count De Porhoet La Zouche | |
| B: | 1112 |
| Rohan, Morbihan, Bretagne, France | |
| Alan IV Fergen Duke of Brittany | |
| B: | 1072 |
| D: | 1119 |
| Ermengarde D'Anjou | |
| B: | 1078 |