Spanish Half-Siblings Fight to Overturn Marriage Ban After Fathering Two Children

​BARCELONA – A Spanish couple who discovered they were half-siblings as adults are launching a legal crusade to change the nation’s marriage laws. Ana Parra and Daniel Parra, who already share two children, are demanding the right to wed, arguing that the law should “advance” just as it did for same-sex couples.

​The pair’s story began when Ana, then 20, tracked down her estranged half-brother on Facebook. Their father had abandoned Ana as a child to start a second family, and while both knew of the other’s existence, they had never met. According to the couple, the connection was “instant and magnetic.”

​A “Transformative” Moment

​The relationship shifted from familial to romantic during a party. “That kiss broke all barriers,” Daniel recalled, describing the moment as a reality check that forced them to confront their feelings. Despite initial feelings of shame and the weight of social taboos, the couple eventually chose to go public after a holiday to London. They described the trip as an “explosion of freedom” where they could finally act like a couple without the scrutiny of their home community.

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​The Legal Hurdle

​While consensual incest between adults has been legal in Spain since 1978, the Spanish Civil Code remains a firm barrier to their ultimate goal. Article 47 of the Code strictly prohibits marriage between direct relatives or collaterals up to the third degree.

​The couple, whose children are ages five and three, insist their family unit is no different from any other. “Societies must not cling to traditionalism,” Ana stated. “We love each other and we are not harming anyone.”

​Genetic Risks and Social Backlash

​The Parras have faced significant vitriol since appearing on Spanish television to share their story, with many online critics citing moral and religious objections. There is also the matter of biology; children of first-degree relatives face a significantly higher risk of recessive genetic disorders. However, the couple maintains that their children are “perfectly healthy” and that their right to legal recognition should prevail over ancient taboos.

​The case has reignited a complex debate in Spain regarding the boundaries of personal liberty versus state-mandated moral codes. For now, the Parras remain a family in the eyes of their children—who know their parents are siblings—but “strangers” in the eyes of the marriage registry.