Fronilde was the daughter of unknown parents. The date and place of her birth have not been found.
She died in 1009. The place is not known.
Her husband was Gonzalo Fernández de Castilla, who she married in 0959. The place has not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | 1009 |
|