Ælfgifu

From the Wikipedia page of her son:

"Ælfwine appears in an early twelfth-century cartulary from the monastery of Sainte Foi at Conques in Aquitaine as Alboynus (a cognate of Ælfwine), alongside the records that he was born in London and was the son of a King Heroldus (a Latinised version of Harold) and one Alveva ("Ælfgifu" Latinised)...

"With Harold Harefoot's sudden death on 17 March 1040 Ælfwine was most likely left in his otherwise unknown mother's care, or even that of his powerful and influential grandmother Ælfgifu of Northampton, who may be the Ælfgifu of the record mistakenly named as his mother, rather than grandmother."