Why do Spanish women not change their surnames when they get married?

In Spain, women do not change their surnames when they get married due to a lack of legal obligation or custom, with the process not recognized by Spanish law. The tradition of having two surnames from birth, one from each parent, is deeply ingrained in Spanish naming conventions, contributing to the absence of surname changes upon marriage. This practice is not solely attributed to feminist ideology but also to administrative considerations, dating back to the standardization of names in the nineteenth century to avoid unnecessary paperwork in the future.

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