Przybysław Dyjamentowski

Przybysław Dyjamentowski (1694–1774) was a notable Polish documents forger and writer. In his lifetime he prepared several "ancient" chronicles, diplomas and genealogies for sale. One of his best known works is the Slavic-Sarmatian Chronicle of Prokosz, which gained much popularity as one of the earliest mentions of Poland (dated to 936). The forged chronicle was first published in 1825 by Hipolit Kownacki (). The chronicle was supposed to stretch back the existence of Poland as an independent nation by a few generations beyond the accepted start of the Piast dynasty and suppot a connection between mediaeval Poles and ancient Sarmatians and peoples of East India.

Dyjamentowski's forgeries have not always been recognised as such, and have at times been influential, even in the twenty-first century.

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