c. 1155 - after 1181
House: de Tosny
Titles: Countess of Norfolk
Ida de Tosny, Countess of Norfolk, was a Norman royal mistress and noblewoman. She was the daughter of Ralph IV de Tosny and Margaret de Beaumont, and was born in Flamstead, Hertfordshire, England. Ida became a royal ward and mistress to King Henry II of England, with whom she had an illegitimate son, William Longespée, 3rd Earl of Salisbury.
Around Christmas 1181, Ida was married to Roger Bigod, 2nd Earl of Norfolk, by King Henry II. As part of her marriage, she received the manors of Acle, Halvergate, and South Walsham. Ida and Roger Bigod had several children together, including Hugh Bigod, 3rd Earl of Norfolk, and others.
Ida de Tosny died after 1181, but the exact circumstances of her death are not recorded. Her children with Roger Bigod continued the family lineage.
Death: Ida de Tosny died after 1181; exact circumstances and burial place are unknown.
Children: Ida had at least eight children with Roger Bigod and one illegitimate son, William Longespée, with King Henry II.
Marriages: Roger Bigod, 2nd Earl of Norfolk
Parents: Ralph IV de Tosny, Margaret de Beaumont