Court of Cassation (Duchy of Warsaw)

The Court of Cassation (Polish: Sąd Kasacyjny; in contemporary orthography: Sąd Kassacyyny) was the highest judicial authority in the Duchy of Warsaw, established by a decree of Duke Frederick Augustus I on 3 April 1810, pursuant to Article 16 of the Constitution of the Duchy of Warsaw. The court reviewed cassation appeals from both civil and criminal courts, resolved jurisdictional disputes between courts, and served as a disciplinary court for judges and the prosecutor of the Court of Appeal.

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