Przybysław Dyjamentowski

Przybysław Dyjamentowski (1694–1774) was a notable Polish documents forger and writer.[1] 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.[1][2] 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 support a connection between mediaeval Poles and ancient Sarmatians and peoples of East India.[3]

Dyjamentowski's forgeries were not always recognised as such, although they are now regarded as entirely pseudohistorical, and have at times been influential, even in the twenty-first century among a minority of Polish nationalists.