Joseph Pitschmann (1758-1834), "Portrait of Casimir Konstantin Plater."

pastel on cardboard, 1797, 25 x 18 cm, signed and dated along the left edge: "Pitschmann 1797".

On the reverse, handwritten description "Kazimierz Konstanty Plater Sub-Chancellor of the Grand Duchy of Lithuania Chairman of the Order Commission of Lithuania. Member from the Imperial Council. Owner of landed estates in the Crown in Lithuania and Inflants. This portrait depicting Hr. Plater, made by Pitschman, was purchased from Hr. Plater of Kraśniczyn by my father Kazimierz Hr. Miączyński. - Antoni Miączyński Satyjów, 22. V. 1893 r." On the reverse are the seals: at the top left and right the Trzywdar coat of arms used by several dozen Polish noble families (including the Plater family), in the lower right corner the coat of arms of the Suchekomnaty family (with which the Miączyński family sealed itself).