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The Duke of Courland, Ferdinand Kettler, addresses the Voivode of Ruthenia, Jan Stanisław Jabłonowski, requesting his support for a letter directed to the nobility and senators of the Ruthenian Voivodeship during the pre-sejmik assemblies. He appeals for the use of the Voivode's authority to save and liberate the Duchies of Courland and Semigallia and the Piltene District from Swedish occupation.

J. de Harstall appeals to the Voivode of Volhynia, Jan Jabłonowski, requesting his intercession with his father, the Castellan of Kraków, in light of unfavorable actions and financial claims made by the Duke of Courland. He assures the recipient of his unwavering respect and devotion to the entire Jabłonowski family.

J. de Harstall renews his expressions of respect towards the Voivode of Volhynia, Jan Jabłonowski, and asks for the continued favor of his father, the Grand Crown Hetman. He explains the issue of the summons served to him by the Duke of Courland for a hearing in Lviv, protests against this procedure, and asks for protection against unjust accusations.

Lanckoroński informs the Voivode of Ruthenia, Jan Jabłonowski, about the nobility's opposition to the Swedish war and the adoption of instructions to send envoys to the King of Sweden demanding his withdrawal from Courland. The letter also briefly mentions current personnel matters and the death of Joanna.

Michał Nagrodzki informs the President of Lviv about receiving a summons to the assessor courts, while delaying his departure until he consults with others and receives news from the Chancellor's court. He reports on the illness of the decree writer and requests the conditional sending of a payment order for travel expenses.