Aelfgifu was born about 0997 in Wessex, England. Aelfgifu is no longer alive.
General Notes
I have made a general shift in dates to accomodate Godiva's (mother of Aelfgar) birth date according to Ancestral Roots and Encyclopedia Britannica.
If Emma of Normandy was Aelfgifu's mother, it would explain why this family was treated well by William the Conqueror, who did not confiscate their property like many of the other Anglo Saxon people. The other reason put forth for the good treatment has been the connection of this family to William Malet through Aelfgar's half sister.