Łukasz Opaliński (1612–1666)

Łukasz Opaliński (1612–1666) was a Polish nobleman (szlachcic), political writer, and moralist. He served as the Court Marshal (Marszałek dworu koronnego) from 1639 and Grand Marshal of the Crown (Marszałek wielki koronny) from 1652.

Opaliński was a member of the influential Opaliński family, and brother of Krzysztof Opaliński, a prominent figure during the reign of King John II Casimir Vasa. He was a patron of the arts and sciences, and a proponent of reform within the Polish-Lithuanian Commonwealth.

His writings often focused on the moral decay he perceived within the nobility and the need for greater civic virtue. He was critical of the elective monarchy and advocated for strengthening royal power. Opaliński's most important works include "De Officiis Libri Tres" (Three Books on Duties), a moral treatise outlining the responsibilities of various social classes, and "Polonia Defensa Contra Ioannem Barclaium" (Poland Defended Against John Barclay), a defense of Poland against criticism levied by the Scottish writer. He also authored numerous political pamphlets and speeches.

Opaliński's contributions to political thought and his advocacy for reform make him a significant figure in Polish history. His writings provide valuable insight into the social and political challenges facing the Commonwealth during the 17th century.