Alice, younger daughter of Waltheof, Earl of Northumberland, Northampton and Huntingdon. [Burke's Peerage]
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He married, in 1103, in England, Alice, younger daughter and coheir of Waltheof, EARL OF NORTHUMBERLAND, NORTHAMPTON and HUNTINGDON, by Judith (the King's cousin), daughter of Lambert, COUNT OF LENS. Alice inherited Walthamstow, Essex. Ralph died about 1126 and was buried at Conches. His widow gave the church of Walthamstow to Holy Trinity, London, for the salvation of the souls of her son Hugh, who was buried there, and her husband. [Complete Peerage XII/1:760-2, (transcribed by Dave Utzinger)]