Aelgifu of Northumbria was a noblewoman from the early medieval period, known for her connections to the royal family of Northumbria. She was the daughter of Aethelwulf, a king of Wessex, and married Ealdred, a prominent figure in Northumbrian politics. Aelgifu's lineage placed her in a significant position within the Anglo-Saxon aristocracy. Her marriage to Ealdred helped strengthen ties between different regions of England during a time of political fragmentation. Aelgifu's descendants included influential leaders, contributing to the complex history of the Anglo-Saxon period. Her life reflects the intertwining of noble families in shaping early English history.