68It has thus held that according to the fourth subparagraph of Article 3(3) TEU and Article 22 of the Charter, the European Union must respect its rich cultural and linguistic diversity. In accordance with Article 4(2) TEU, the European Union must also respect the national identity of its Member States, which includes protection of the official language of the Member State concerned (judgments of 12 May 2011, Runevič-Vardyn and Wardyn, C‑391/09, EU:C:2011:291, paragraph 86, and of 16 April 2013, Las, C‑202/11, EU:C:2013:239, paragraph 26).
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