Daughter of Count Menendo González and his wife Tutadomna Moniz, Ilduara had several brothers and sister, including Elvira Menéndez, wife of King Alfonso V of León. She governed the county jointly with her husband Count Nuno Alvites, son of Alvito Nunes and Gontina. Since their son Mendo Nunes was a minor in 1028 when his father died, he governed the county under the tutelage of his mother Ilduara.
Betotez familyBorn: ? Died: 1058
|Titles of nobility|
| Countess of Portugal
with Nuno Alvites