Breeder: state stud Mezöhegyes, HU.
Her Dam is not known, other than she were broodmare at Mezöhegyes.
A research will be necessary.
And she is definately not a Spanish PUREBRED
In the old Studbooks for Mezöhegyes her breed is given as "Spanische Rasse",
but her dam were not spanish. So her breed is changed to Hungarian.