Adeliza [SEP] mother
Adeliza
Adeliza or Adelida (died before 1113) was a daughter of the English king William the Conqueror and his wife, Matilda of Flanders. There is considerable uncertainty about her life, including her dates of birth and death. In a mortuary roll prepared at her sister's religious house, she was listed first among the daughters of William the Conqueror. She was usually the first daughter in lists of William's children, and thus probably the eldest. Her inclusion in the mortuary roll indicates that her death preceded the date
had confirmed a gift of land made by her mother, Adeliza, to Burton Abbey. He was convinced the land in question had belonged to Alan and that Adeliza was the same as Avelina, his wife. As Adeliza would not have been able to grant the land until it passed into her control on his death, and the Abbey was known to have had the land by 1114, it followed that Alan could not have lived beyond 1114. However, Round's researches established the reasoning was based on a false premise.