Following the estimated birth dates for Margaret using the birth of her son Warren and further descendants, I feel that Warren 6th Lord's birth estimates are just too far off for this Margaret. In my tree, Warren the 4th Lord, has a Margaret, where she also has a brother Richard (born the same vintage); I have gone over this quite a bit and I believe she has been wrongly placed with the later Warren as her father, and thus her mother would be different also. If anyone can help me sort this out, I would appreciate it. Thank you.