Metropolitan Dionysius (born Konstantin Nikolayevich Valedinsky, Russian: Константи́н Никола́евич Валеди́нский; 4 May/16 May 1876 in Murom, Vladimir Governorate, Imperial Russia - 15 March 1960, Warsaw, Poland) was the Metropolitan of Warsaw and all Poland and the primate of the Polish Orthodox Church from 27 February 1923 to 17 April 1948. Konstantin was born in family of hereditary priests not far from Moscow in 1876. He was a nephew of Arbishop Hieronim (Eksempliarsky) who served as Archbishop of Warsaw (1898 — 1905) and Archbishop of Wilno (1894 — 1898). Konstantin lost his father early wh