The talks were unsuccessful. After the death of Pilsudski in May 1935, he was associated with the group of Walery Sławek. Prystor took part in the works on the 1935 Polish legislative election, after which he became a senator. On October 4, 1935, he was appointed the speaker of the Polish Senate and remained in this post until November 27, 1938, when President Ignacy Mościcki dissolved Polish parliament. Following the 1938 parliamentary election, he again was elected to the Senate. On March 9, 1939, he gave a speech, harshly criticizing the policies of the government and the Camp of National Unity. Among others, he claimed that a parliament, elected in undemocratic vote, has no moral right to elect a new president in 1940. Invasion of Poland and death On September 18, 1939, Prystor fled to neutral Lithuania, where he helped Polish refugees. After the annexation of the Baltic States into the Soviet Union (see Soviet annexation of the Baltic states (1940)), he was arrested by the NKVD (June 1940). Despite his age of 66, Prystor was taken to the infamous Lubyanka Building. He was in July 1940 sentenced to death, and in July 1941, his sentence was changed to 10 years in prison. Soon afterwards he fell ill with dysentery, and died in a hospital at Butyrka prison. The exact date of his death is unknown. According to former Polish Prime Minister Leon Kozłowski, who was also kept in Lubyanka, Prystor most likely died in August 1941, while Polish historian Władysław Pobóg-Malinowski claims that the death took place in October 1941. His symbolic grave is located at Powązki Cemetery in Warsaw. Honours and awards Silver Cross of the Virtuti Militari Grand Cross of the Order of Polonia Restituta, previously awarded the Commander's Cross Cross of Independence with Swords Cross of Valour Grand Cross of the Order of Christ (Portugal, 1931) References 1874 births 1941 deaths Politicians from Vilnius People from Vilensky Uyezd Polish Socialist Party – Revolutionary Faction politicians Nonpartisan Bloc for Cooperation with the Government politicians Camp of National Unity politicians Prime Ministers of Poland Government ministers of Poland Labor ministers Members of the Sejm of the Second Polish Republic (1930–1935) Senat Marshals of the Second Polish Republic Senators of the Second Polish Republic (1935–1938) Senators of the Second Polish Republic (1938–1939) Combat Organization of the Polish Socialist Party members Polish Military Organisation members Polish Freemasons Polish Army officers