Is polygamy legal in Europe? Formally, the answer remains no. In Spain—as in the rest of the European Union’s Member States—polygamy is not recognized under civil law.
However, legal practice introduces nuances that challenge the official position: Spain recognizes the division of a widow’s pension among multiple wives when the deceased was linked to Morocco, Tunisia, or Senegal and when such arrangements are provided for under bilateral Social Security agreements. No joke, even left-wing fact-checkers recognise this.
Spain maintains Social Security agreements with Morocco (signed in 1979, in force since 1982), Tunisia (signed in 2001, in force since 2002), and Senegal.
Article 19 of the agreement with Senegal specifies that if the insured person had “multiple wives,” the survivor’s benefit will be divided among the widows who meet the requirements set out under Spanish legislation.
Article 23 of the agreement with Morocco avoids reference to multiple wives, and instead says the widow’s pension “shall be distributed in equal shares among those who, in accordance with Moroccan legislation, are beneficiaries of that benefit.”
Article 24 of the agreement with Tunisia does not refer specifically to multiple wives, as polygamy in that country was abolished in 1956. It rather says if “more than one widows exist who are eligible,” the widow’s pension will be divided among them in equal proportions.
In other words, polygamy is not legal in Spain, but its social security effects are recognized when they stem from marriage(s) validly contracted in another country with which Spain has a bilateral agreement.
The issue returned to public attention following a parliamentary question by VOX MPs Carlos Flores, Alberto Asarta, and José María Sánchez, who asked how the government justifies that an agreement recognizes “a regime of multiple wives when Spanish legislation does not permit polygamy.” They did not invoke feminist arguments, though such a line of criticism could have been used in this case.
In its written response, the government confined itself to referencing the content of the existing agreements, emphasizing that Spain is not legalizing polygamy domestically but simply applying international rules ratified by the state.
From a strictly legal perspective, the argument is correct: once ratified, international treaties form part of domestic law. But the underlying issue is political and cultural, not merely technical.
What Spanish law provides
Under Spain’s general Social Security regime, entitlement to a widow’s pension requires clear conditions for both the deceased (the contributor) and the beneficiary. The deceased must have made sufficient contributions or have been a pensioner, and the beneficiary must be a legal spouse, a divorced spouse receiving compensatory support, or a registered partner meeting certain conditions regarding cohabitation and duration.
The system is designed around a monogamous framework typical of Western legal tradition. Spanish legislation does not, under any circumstances, allow an individual to marry multiple people simultaneously.
Yet when a polygamous marriage has been validly concluded abroad and the worker has contributed in Spain under a bilateral agreement, the system permits the benefit to be shared. This is not an internal legalization, but it is an external recognition with direct economic consequences.
Legal? In practice, yes. Controversial in the current context of growing Islamization? Undoubtedly. What message does a state send when it rejects an institution in its domestic legislation but recognizes it in practice for the purposes of public expenditure?
While some view this situation as simple legal realism, others see it as an example of how, under the guise of administrative technicalities, deeper adaptations of the European social model are taking place. Adaptations that, they argue, will intensify as Muslim populations grow and continue to live according to their own norms.
The agreements with Morocco, Tunisia, and Senegal illustrate how legal globalization generates grey areas where the boundaries between principle and pragmatism blur. Ultimately, the issue is not only how a pension is divided, but what model of society is being consolidated over the long term.
