The Dark Prince - life of Vlad Dracula

Here is the 4th part of the great movie about the life of prince Vlad Dracula. He comes to seize the Wallachian throne, thirsty for justice.
Vlad starts with a visit to his father grave (presented as being situated in the monastery of Snagov -although there is no proof about this) and revenge against the noblemen, for killing his father and elder brother, Mircea, but also for the political instability they caused to the country. The country keeps being called "Romania", despite the fact that in middle ages there was no Romania, but this is understandable by the commercial nature of the movie. (People has to know what country the film is talking about, isn't it ?).