At the lost city, when the hero enters the building via the secret door of Anubis, there are two demons. While the demon Frik talks to the other demon, the latter is referred to as Frak, but when clicking the eye icon on the demon - its name is Frac.
In the end of the previous game Quest for Glory II: Trial by Fire (1990), the Hero is shown leaving Shapeir, heading out into the desert night riding a saurus, on his way to his next destination. According to the introduction of this game, the Hero has been living in Shapeir for three months before heading to Tarna - neither by riding nor alone, but via magical portal along with Rakeesh, Uhura and Simba.
Janna Jamil, the welcome woman at the Welcome Inn, tells the hero that her husband's name is Kirbir. The amulet seller refers to him as Khabir.
When the hero (as Thief) breaks into the Laibon's hut, clicking the eye icon on the sleeping Laibon gives the message "Uhura looks every inch a Simbani Warrior".