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In page Kazimierz Sabbat:

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He became President of the Republic of Poland (in Exile) in 1986 succeeding Edward Raczyński. He died in London, aged 76, in 1989. Coincidentally, on the same day Wojciech Jaruzelski was elected by a still unfree Parliament as the first President of the country since the 1950s. Ryszard Kaczorowski, Minister of Domestic Affairs and designated successor, took office in exile and on 22 December 1990, after the first free and fair elections in Poland since the war, handed his powers and the insignia of the Polish Second Republic to President-elect Lech Wałęsa.