Legitimacy (family law)

Lore & Background

Under English law, a bastard could not inherit real property and could not be legitimized by the subsequent marriage of father to mother, with one exception: when an older illegitimate son (a 'bastard eignè') took possession of his father's lands after his death, he would pass the land on to his own heirs, and a younger non-bastard brother (a 'mulier puisnè') would have no claim.

Reader's Guide

Legitimacy has shaped inheritance, succession, and social status for centuries. The United States Supreme Court in the early 1970s held most common-law disabilities invalid under the Equal Protection Clause, though some federal benefits still require legitimization. Many countries have abolished legal disabilities, but hereditary titles and some nationality laws still distinguish between legitimate and illegitimate children.

Did You Know?

• In Scotland, an illegitimate child could be legitimated by the subsequent marriage of his parents if they were free to marry at the date of conception.
• The Catholic Church never held illegitimacy as an obstacle to baptism, even infant baptism.

Medieval Foundations and the Birth of Bastardy Law

The legal concept of legitimacy in Western common law traces back to the thirteenth century. This categorization extended beyond simple timing issues, encompassing situations where parents were legally unable to wed—such as when one or both were already in another marriage or when the relationship was incestuous. Under the prevailing English legal framework, a bastard was barred from inheriting real property, and even the subsequent marriage of the parents could not retroactively legitimize the child's status.

The Long Legislative Journey Toward Equality in Britain

British law gradually dismantled the harsh restrictions once placed on children born outside marriage. In Scotland, the legal landscape evolved differently: an illegitimate child could be legitimated by the parents' later marriage if they had been free to wed at the time of conception.

Global Reforms and the Erosion of Legal Stigma

Across the broader Western world, legal disabilities once attached to out-of-wedlock birth have been progressively eliminated. In the United States, a series of Supreme Court rulings in the early 1970s struck down most common-law disabilities imposed on illegitimate children, finding them to violate the Equal Protection Clause of the Fourteenth Amendment. However, certain federal benefits—such as automatic naturalization when a father acquires U.S. citizenship—still require the child to have been legitimized in the appropriate jurisdiction. France followed a longer path: reforms began in the 1970s, but full equality was not achieved until the twenty-first century, with Act no. Bulgaria's constitution decrees equal rights for children regardless of parental marital status.

Social Transformation and the Fading of the Legitimacy Distinction

The cultural and demographic landscape of Western societies has shifted dramatically, rendering the once-central legal distinction between legitimate and illegitimate children far less consequential. The sexual revolution of the 1960s and 1970s, combined with the declining influence of Christian churches in family and social life, substantially reduced the social importance of legitimacy. In Scotland's history, the concept of legitimacy was not merely a legal abstraction: numerous natural children of the monarchy were granted positions and estates that founded prominent families. In the fourteenth century, Robert II of Scotland gifted estates in Bute to one of his illegitimate sons, founding the Stewarts of Bute, while a natural son of Robert III became the ancestor of the Shaw Stewarts of Greenock. These historical examples illustrate how the stigma of bastardy coexisted with real social and political power, a tension that modern legal reforms have largely resolved.

Gallery