Complex sentence: For his failure in preventing the formation of Bar Confederation, Repnin was dismissed and on 22 May 1769 he was replaced by the envoy and minister Mikhail Volkonsky, a high ranking officer in the Russian Army who had been stationed in Poland since 1761.
Split into simpler sentences: For his failure in preventing the formation of Bar Confederation, Repnin was dismissed. On 22 May 1769 he was replaced by the envoy and minister Mikhail Volkonsky, a high ranking officer in the Russian Army who had been stationed in Poland since 1761.