Not necessarily while there's been no specifics about being granted the title officially the people are already loyal to her and in practice she is basically the baron, the more she develops the land the more she politically establishes her position, less like a governor and more like a Regent...
Once a feudal lord grants a land/title to someone as their vassal it has a double edged effect on one hand they can govern way more effectively but demanding it back is harder, by governing not only over land but people the vassal gains access to creating their own private military force and can...