ID
Ida de Tosny
d. 1200
Vitals
Died
1200
Family
About
Ida de Tosny was a royal ward and, before her marriage, mistress of Henry the Second, to whom she bore William Longespee; married to Roger Bigod she became Countess of Norfolk and mother of a surety of Magna Carta.
Research notes
IDA de TOSNY (c.1160-c.1200), wife of Roger Bigod 2nd Earl of Norfolk; mother of Hugh Bigod 3rd Earl (our line); previously mistress of HENRY II (mother of William Longespee, half-blood kin to the kings). The TOSNY line above, note-only. ⚠ CORRECTION 30 Jul 2026: she, not Juliana de Vere, is Hugh 3rd Earl's mother. Standard well-documented medieval royal genealogy per the cited authorities; contested rungs note-only, not hardened.