Judgment of the Court (Grand Chamber) of 2 September 2021.#O.D. and Others v Istituto nazionale della previdenza sociale (INPS).#Request for a preliminary ruling from the Corte costituzionale.#Reference for a preliminary ruling – Directive 2011/98/EU – Rights for third-country workers who hold single permits – Article 12 – Right to equal treatment – Social security – Regulation (EC) No 883/2004 – Coordination of social security systems – Article 3 – Maternity and paternity benefits – Family benefits – Legislation of a Member State excluding third-country nationals holding a single permit from entitlement to a childbirth allowance and a maternity allowance.#Case C-350/20.