I understand the dates are often more estimates than anything else, but the timeline from Aélis' son, Robert FitzHugh de Grantmesnil (1052) to Aélis (1045 - a 7 yr old mother?) to Aélis' father, Yves II (1040 - a 5 yr old father, 12 yr old grandfather) seems off enough to make it look more like siblings. The only age difference that makes sense is that between Yves II and Yves I (1015 - 25 yr old father).
