What two 2026 Supreme Court rulings reveal about family estrangement, proof and forced heirship
Two Spanish Supreme Court judgments delivered just fourteen days apart reached opposite results on disinheritance for psychological abuse. Together they provide a timely warning for international families: estrangement alone is not a legal cause, and the outcome depends on evidence of serious harm, responsibility for the breakdown and the law governing the succession.
Why these rulings matter now
Disinheritance disputes often arise after years of family fracture, when the person who made the will can no longer explain what happened. For English-speaking residents of the Costa del Sol, and for heirs abroad dealing with a Spanish estate, the issue is especially delicate. Owning a home in Spain does not by itself answer which inheritance law applies; nor does an English-language will automatically displace Spanish forced-heirship rules.
The Supreme Court’s judgments 507/2026 of 7 April and 624/2026 of 21 April are engaging because they use the same doctrine but produce different outcomes. One desheredación was upheld; the other failed. The contrast shows why a carefully drafted clause, a coherent factual record and correct cross-border planning all matter.
The Spanish legal starting point
Under Spain’s common Civil Code, the legítima is the part of an estate reserved by law to forced heirs. Children and descendants are first in the statutory list. Where this regime applies, a parent cannot simply omit a child because the relationship has deteriorated.
Articles 848 and 849 require disinheritance to rely on a legally recognised cause and to be stated in a will. Article 853.2 lists physical mistreatment and serious verbal injury among the causes for disinheriting children. The Code does not expressly list emotional estrangement. However, Supreme Court case law has accepted that repeated psychological abuse may fall within “mistreatment”, provided the facts cross a demanding threshold.
If the child contests the clause, Article 850 places the burden of proving the stated cause on the testator’s heirs. If the cause is not expressed, is not legally sufficient or cannot be proved, Article 851 protects the disinherited person’s reserved share; it does not necessarily erase every other provision in the will.
Same test, opposite outcomes
In judgment 507/2026, the father had disinherited two adult children and named his siblings as heirs. The provincial court treated the children’s prolonged absence, including no visits or calls during the father’s serious illness, as proven psychological mistreatment. The Supreme Court left that conclusion in place. It stressed that the established facts included a roughly twelve-year break, emotional harm to the father and no proven basis for attributing the estrangement to him.
There is an important procedural caution. The Supreme Court also criticised the children’s appeal for failing to attack the factual foundation and for defective cassation technique. The judgment therefore should not be read as a universal rule that twelve years without contact automatically permits disinheritance.
Judgment 624/2026 went the other way. The son had largely been raised by his grandparents because of his parents’ drug problems. The later relationship with his father was weak and mutual distancing was evident, but the evidence did not show that the rupture was exclusively attributable to a reprehensible and unjustified act by the son. Nor were efforts by the father to rebuild the relationship established. The Court restored the son’s reserved share. It also rejected reliance on conduct after the will or death, such as not attending the funeral, as proof of the earlier stated cause.
What a court is likely to examine
These decisions do not turn on a simple contact count. The judicial inquiry is contextual: Was there genuine psychological harm of sufficient seriousness? Was the child’s conduct unjustified and principally responsible for it? Did the parent contribute to the rupture? Were there childhood events, abuse, addiction, divorce conflict or blocked attempts at reconciliation that explain the distance? And can the heirs prove the account with reliable evidence?
A hypothetical example illustrates the distinction. A parent in Málaga who receives no contact for a decade despite repeated documented attempts to reconnect may present a materially different case from a parent who left the family, rejected contact and later described the resulting distance as abandonment. Neither result is automatic; the evidence and applicable law remain decisive.
The cross-border question comes first
Before applying these rulings, an international estate must identify its governing law. Under EU Succession Regulation 650/2012, the default is generally the law of the deceased’s habitual residence at death. A person may choose, in a properly framed disposition on death, the law of a state whose nationality they possess. The Regulation applies the designated law even if it is the law of a non-EU state, and Article 23 expressly places disinheritance and reserved shares within that law’s scope.
This means that a British national habitually resident in Marbella may be exposed to Spanish forced-heirship rules unless a valid choice of the relevant national law has been made and that choice works for the circumstances. Conversely, a Spanish apartment does not automatically make Spanish succession law govern the entire estate. Questions involving the UK’s constituent legal systems, dual nationality, residence history and the wording or date of existing wills require individual analysis.
Spain also has several civil-law systems with different succession rules. The common Civil Code applies in Andalusia when Spanish common law is the applicable system, but conclusions should not be transferred automatically to estates governed by Catalan, Balearic, Basque, Galician, Aragonese or Navarrese law. Tax is a separate analysis: the EU Succession Regulation does not harmonise inheritance tax.
Practical implications for testators and heirs
For a testator considering disinheritance, a generic reference to “lack of contact” is fragile. The will must identify a statutory cause, while the surrounding evidence should be preserved lawfully and proportionately: correspondence, attempts at reconciliation, care arrangements, contemporaneous professional records and witnesses may become important. The account must also confront facts that could show the rupture was mutual or attributable to the testator.
For a child or other forced heir challenging a Spanish will, the first tasks are to obtain the authorised will and death documents, confirm the governing law, identify the stated cause and preserve evidence explaining the family history. For the heirs defending the will, the burden under Article 850 should shape the case from the outset. Early advice is particularly valuable where assets, family members or evidence are spread across countries.
Conclusion
The 2026 judgments sharpen rather than simplify the rule. Spanish law can treat severe, unjustified emotional abandonment as psychological mistreatment, but mere estrangement is not enough. The decisive questions are harm, responsibility and proof. In cross-border estates, all three sit behind an even earlier question: which country’s succession law applies?