Chretien de Troyes' novel “Perceval, or the Tale of the Grail” is a great literary monument of the Middle Ages, which had a significant and lasting influence on the culture of subsequent centuries, right up to our time, since it was in this novel that the original plot of the search for the Holy Grail was developed. A complete poetic translation of this work into Russian has been carried out for the first time. The publication includes a scientific article and notes to the novel.