Wenceslaus was described as a man of great knowledge and is known for the Wenceslas Bible, a richly illuminated manuscript he had drawn up between 1390 and 1400. However, his rule remained uncertain, varying between idleness and cruel measures as in the case of John of Nepomuk. Unlike his father, Wenceslaus relied on favouritism, which made him abhorrent to many nobles and led to increasing isolation. Moreover, he probably suffered from alcoholism, which was brought to light in 1398 when he was unable to accept an invitation by King Charles VI of France for a reception at Reims due to his drunkenness.