Getting Spanish citizenship through great-grandparents was possible under the Democratic Memory Law (Law 20/2022), but the application window closed on October 22, 2025. If an application was filed before that date, the case should still be processed. If the deadline was missed, no route now offers a direct claim four generations back, though a couple of options remain if your parent or grandparent holds Spanish nationality or if you’re willing to live in Spain.
Why the Great-Grandchild Route Was Always Indirect
The Democratic Memory Law never extended eligibility to great-grandchildren directly. It reached grandchildren of exiled Spaniards, and no further. Great-grandchildren qualified only through a chain: a grandchild had to apply and be approved first, and then, because they had acquired Spanish nationality under the law, their adult children could apply as adult children of a new Spanish national.
That mechanism made timing everything. Both applications had to be filed before October 22, 2025. Processing averaged one to two years, so a parent who filed late in the window could easily receive approval after the deadline, leaving the great-grandchild with no way to file in time. Families who understood the chain in 2022 or 2023 and moved quickly were the ones positioned to complete it.
If Your Application Was Filed Before the Deadline
The deadline applied to filing, not to receiving a decision. Applications submitted at a Spanish consulate before October 22, 2025 should still be processed. The Spanish government extended the original deadline from October 2024 to October 2025 specifically to accommodate the backlog of appointment requests and applications that couldn’t be handled within the original two-year window.1Ministry of Foreign Affairs, European Union and Cooperation. The Government Extends the Deadline for Spanish Nationality Applications Set Out in the Democratic Memory Law by One Year
Millions of applications were filed across consulates worldwide, so continued delays are expected. Consulates may treat borderline cases differently, particularly for people who secured an appointment before the deadline but hadn’t completed every step by that date. If your situation sits in that gray zone, getting legal help to document that you initiated the process on time is worth doing.
If the Spanish ancestor in your chain was a grandchild-generation applicant whose case is still pending, your own option-based application as their adult child depends on their approval coming through. That’s the fragile part of the chain.
Routes Still Open If You Missed the Window
Spanish nationality law didn’t disappear with the Democratic Memory Law. Several pathways remain, though none reach as far back as the DML did.
Option Through a Newly Spanish Parent
Under Article 20 of the Spanish Civil Code, certain people can opt into Spanish nationality, including those who are or have been under the parental authority of a Spanish citizen and those whose mother or father was Spanish and born in Spain.2Punto de Acceso General. Acquiring Nationality If your parent obtained Spanish citizenship through the DML, this route can still open for you even though the DML itself is closed, because the option right sits in the Civil Code rather than in the special law.
One Year of Legal Residence in Spain
Anyone who establishes legal residence in Spain can eventually apply for citizenship. The standard requirement is ten years, but children and grandchildren of someone who was originally Spanish need only one year.2Punto de Acceso General. Acquiring Nationality For most people whose claim originally ran through a great-grandparent, this is the most realistic remaining path, but only if a grandparent qualifies as originally Spanish. You have to actually live in Spain for the year, and you have to pass basic language and civic knowledge tests.
One important distinction: nationality obtained through residency is not “nationality by origin,” which changes the dual citizenship rules.
Naturalization by Royal Decree
The Spanish government can grant nationality by royal decree in exceptional circumstances. It’s discretionary and rare, not a reliable option for most descendants, but it exists as a legal possibility for cases with compelling facts.
Documents You’ll Need for Any of These Routes
The core paperwork overlaps across routes. You need your own birth certificate and a birth certificate for each generation between you and the Spanish ancestor. Where an older civil record doesn’t exist, a baptismal certificate from parish or diocesan archives combined with a certificate confirming there is no civil registration can substitute. Marriage certificates connect the lineage; death certificates may be required for deceased ancestors.
Every non-Spanish document must be apostilled and translated into Spanish by a sworn translator. For U.S. documents, the apostille comes from the secretary of state’s office in the state that issued the document; FBI background checks require a federal apostille from the U.S. Department of State in Washington, D.C.3Ministry of Foreign Affairs, European Union and Cooperation. Apostille of The Hague to Legalize U.S. Documents/Certificates State apostille fees are modest, but sworn translation costs add up quickly when you’re authenticating records across multiple generations.
For any claim tied to the DML that is still in process, you also need documentation showing that the Spanish ancestor left Spain and lost their nationality due to the political circumstances of 1936 to 1978. Exile is presumed for those who left between 1936 and 1955; those who left later needed supporting evidence.1Ministry of Foreign Affairs, European Union and Cooperation. The Government Extends the Deadline for Spanish Nationality Applications Set Out in the Democratic Memory Law by One Year
Costs and Processing Times
The government filing fee is €104.06, paid through form Modelo 790, Código 026.4Ministry of Foreign Affairs, European Union and Cooperation. Model 790 Payment Form That fee is non-refundable. Real costs run higher once you factor in certified copies of vital records from multiple countries, apostilles for each document, and sworn translations. Budget seriously for this if your chain crosses three or four generations and two or more countries.
Processing has averaged one to two years after submission, and the volume of DML applications filed before the deadline will keep that timeline long. If you pursue the one-year residency route, the residency clock and the citizenship application processing run separately.
Dual Citizenship Depends on the Route
Spain treats dual citizenship differently based on how you acquired nationality. Nationality by origin, including through the Democratic Memory Law, generally doesn’t require renouncing your existing citizenship, and the DML explicitly did not require applicants to give up their current nationality or pass a language test.1Ministry of Foreign Affairs, European Union and Cooperation. The Government Extends the Deadline for Spanish Nationality Applications Set Out in the Democratic Memory Law by One Year
Nationality acquired through residency is stricter. Unless you’re from a Latin American country, Andorra, the Philippines, Equatorial Guinea, or Portugal, Spain generally requires renunciation of the previous nationality when naturalizing through residence. For U.S. citizens, the United States itself does not require renunciation when you acquire a second nationality. The practical result is that the route you use to become Spanish determines whether you can hold both passports.
The Oath of Allegiance
Once approved, the final step is swearing or affirming allegiance to the King of Spain and the Spanish Constitution. This has to be done before the nationality certificate issues, and it typically takes place at the same consulate or civil registry that handled your application. Missing the deadline for the oath can undo the approval, so treat it as a real step, not a formality.