Judgment of the Court (Sixth Chamber) of 12 May 2021.#YJ v Instituto Nacional de la Seguridad Social (INSS).#Request for a preliminary ruling from the Juzgado de lo Social de Barcelona.#Reference for a preliminary ruling – Equal treatment for men and women in matters of social security – Directive 79/7/EEC – Article 4(1) – Discrimination on ground of sex – National legislation providing for a pension maternity supplement to be granted to women who have had a certain number of children – Exclusion from entitlement to that pension supplement of women who have requested early retirement – Scope of Directive 79/7EEC.#Case C-130/20.