- Marriage (1): Siward Earl of Northumbria 1
ÆLFLED . Simeon of Durham names "Elfleda daughter of Earl Aldred" as wife of Siward and mother of Waltheof. She is named daughter of Ealdred by Roger of Hoveden, who also records her marriage. Simeon of Durham's Account of the Siege of Durham records that "Earl Aldred was the father of five daughters, three of whom bore the same name Ælfleda, the fourth…Aldgitha and the fifth Etheldritha", specifying that "one of these Ælfledas married earl Siward by whom she became the mother of Waltheof".
m SIWARD, son of --- (-York 26 Mar 1055). He was recognised as Earl of Northumbria in 1041, in succession to his wife's uncle. 1
Ælfled married Siward Earl of Northumbria.1 (Siward Earl of Northumbria died on 26 Mar 1055 in York, North Yorkshire, YO1, GB 1 and was buried in St. Mary's Abbey, York, North Yorkshire, YO1, GB 1.)