The European Court of Human Rights ruled unanimously that the banning of an LGBT Pride march in Warsaw was a violation of Articles 11 (freedom of assembly and association), 13 (right to an effective remedy) and 14 (non-discrimination) of the European Convention on Human Rights. The Court specifically acknowledged that the protection of minorities includes people with a minority sexual orientation or gender identity.
Baczkowski and Others v Poland, No 1543/06, 2007
Judgment of the European Court of Human Rights finding violations of the applicant's rights and condemning Poland for banning an LGBT Pride march in Warsaw