The visit of Princess Anna, wife of Grand Duke Vytautas of Lithuania, to Kwidzyn and Malbork in the light of the source writings of Vita Lindana and the testimony of witnesses of the Canonization Process of Blessed Dorothy of Mątow (from 1394 to 1521)
The pilgrimage of Duchess Anna of Lithuania to Kwidzyn before 1404 was mentioned by Jan Reyman, Teutonic prominents and residents of Kwidzyn during the canonization trial of Blessed Dorothy of Montau. The trial proceedings took place in Kwidzyn in 1404-1406, and contain a great deal of information relating to the Teutonic Order's policies and behind-the-scenes activities that influenced later historical events. According to the Files of the Canonization Trial, the witness testified that he “saw the wife of the Grand Duke of Lithuania, namely Vytautas, haunting the said tomb with a large entourage and Vytautas' brother, and with great piety making her offerings, namely silk fabrics. He further testified that he gave her two books about the life of her mother Dorothy, to which the Duchess herself was very eager because of her piety, even though this Duchess was a recent convert to the Christian life.” - The visit of the Lithuanian princes to the Teutonic castles of Kwidzyn and Malbork indicates the intricacies of the relationship between Vytautas and King Wladyslaw Jagiello in the period before the Battle of Grunwald (1410).