In the barrow of one of the Wraiths, the Fighter can find a battle ax to replace the sword he carries. However, the image of the sword in the inventory does not change to ax after the Fighter takes it into possession, although when clicking the "eye" icon on it - it is described as an ax.
Katrina tells the Hero that Ad Avis served her for fifty years. In Quest for Glory II: Trial by Fire (1990), Ad Avis told the Hero he had served the Dark Master (who is revealed to be Katrina in this game) for seventy years.
When the three men in the tavern (Hans, Franz, and Ivan) speak with the hero, their voice audio does not match the English text box.