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Death

By 1935, unbeknown to the public, Piłsudski had for several years been in declining health. On 12 May 1935, he died of liver cancer at Warsaw's Belweder Palace. The celebration of his life began spontaneously within half an hour of the announcement of his death. It was led by military personnel – former Legionnaires, members of the Polish Military Organization, veterans of the wars of 1919–21 – and by his political collaborators from his service as Chief of State, and later, Prime Minister and Inspector-General.

The Communist Party of Poland immediately attacked Piłsudski as a fascist and capitalist, though fascists themselves did not see him as one of them. Other opponents of the Sanation regime were more civil; socialists (such as Ignacy Daszyński and Tomasz Arciszewski) and Christian Democrats (represented by Ignacy Paderewski, Stanisław Wojciechowski and Władysław Grabski) expressed condolences. The peasant parties split in their reactions (Wincenty Witos voicing criticism of Piłsudski, but Maciej Rataj and Stanisław Thugutt being supportive), while Roman Dmowski 's National Democrats expressed a toned-down criticism.

Condolences were officially expressed by senior clergy, including Pope Pius XI and August Cardinal Hlond, Primate of Poland; the Pope called himself a "personal friend" of Piłsudski. Notable appreciation for Piłsudski was expressed by Poland's ethnic and religious minorities. Eastern Orthodox, Greek Orthodox, Protestant, Jewish, and Islamic organizations expressed condolences, praising Piłsudski for his policies of religious tolerance. His death was a shock to members of the Jewish minority amongst which he was respected for his lack of prejudice and vocal opposition to the Endecja. Mainstream organizations of ethnic minorities similarly expressed their support for his policies of ethnic tolerance, though he was still criticized by Ukrainian, German, Lithuanian activists and Jewish supporters of the General Jewish Labour Bund in Poland. On the international scene, Pope Pius XI held a special ceremony on 18 May in the Holy See, a commemoration was conducted at League of Nations Geneva headquarters, and dozens of messages of condolence arrived in Poland from heads of state across the world, including Germany's Adolf Hitler, the Soviet Union's Joseph Stalin, Italy's Benito Mussolini and King Victor Emmanuel III, France's Albert Lebrun and Pierre-Étienne Flandin, Austria's Wilhelm Miklas, Japan's Emperor Hirohito, and Britain's King George V. In Berlin, a service for Piłsudski was ordered by Adolf Hitler. This was the only time that Hitler attended a Holy Mass as a leader of the Third Reich and probably one of the last times when he was in a church.