Marie Casimire Louise de La Grange d’Arquien

Marie Casimire, known in Poland as Marysieńka, was a French-born noblewoman who became queen consort through her marriage to John III Sobieski. Their extensive correspondence records an intense personal relationship, while she also participated in court patronage, diplomacy and factional politics within the Polish–Lithuanian Commonwealth.

Henryk Sienkiewicz’s On the Field of Glory is set in the Polish–Lithuanian Commonwealth of 1682–1683. The impoverished nobleman Pan Gideon and the young warrior Yatsek struggle with family obligation, social rank and a love that appears beyond Yatsek’s reach.