Ida de Tosny (or Toeny, or Tony) , Countess of Norfolk (died after 1181), was a Norman royal mistress.
This, however, is difficult to reconcile with her identification as the mother of William Longespée, 3rd Earl of Salisbury, and his estimated birth date of circa 1167 (William is described as a young man in historical records in 1188-1190 and was likely of age by then.)
Despite her Norman ancestry, Ida was born and raised in Flamstead, Hertfordshire, England.
Around Christmas 1181, Ida de Tosny was given by Henry II in marriage to Roger Bigod, 2nd Earl of Norfolk, together with the manors of Acle, Halvergate and South Walsham, which had been confiscated from Roger's inheritance after the death of his father Hugh Bigod, 1st Earl of Norfolk.
[1] Ida and Roger had a number of children, including: Many historians have speculated that the couple had a third daughter, Alice, who married Aubrey de Vere IV, 2nd Earl of Oxford, as his second wife.