Lostein is the area the Queen currently reigns and is home of Prince Parker. It is the central most kingdom in Arendelle. The castle (it's the image in the Intro page btw) is situated on an island in the middle of a lake and sometimes a mist settles in the palace looks like it's in the clouds. Nearby the palace is a wooded area that is rumored to be enchanted. Before the rulers fell, the area was known to be the most peaceful of the kingdoms due to how loving its rulers were and how strong their magic was. With the Kingdom of Walson as their strongest ally, it seemed no one could over take them. It was for this very reason that Ivelda target it first, for she believed that by taking control of that kingdom's magic she would have an easier time conquering the others. And that's exactly what happened.
However, Ivelda hasn't managed to gain all of the kingdom's magic for the rulers had a backup plan just in case. This magic is hidden deep in the Enchanted wood, protected by the Fae who have been hunted down, but have managed to seal themselves away. Only the princesses' pendents can unlock the area. Still the woods itself is a very dangerous place now.
Walson is the kingdom just south of Lostein. Made up of rolling hills and with a mountain chain to the south of it, this was the kingdom ruled by Princess Isabella's parents. Much like the former rulers of Lostein, the rulers here were very much loved and were very generous. The area was rich in livestock and the citizens here were great music lovers and were known for their bards who traveled all over with their stories and songs. All that changed after it fell to Ivelda. This former kingdom has had the most revolts again the current queen and their are rumors that a few rebels have taken up residents in the mountains where dwarfs use to populate. The Queen often sends her legions there to try to eliminate them. She also still makes sure though that the ranches are still working since they help supply food for her area and surrounding areas. While the Queen is evil through and through, she's not dumb either and knows not to let her 'people' go hungry. She has outlawed music, unless it sings her glory and is not rebellious in any nature.
The palace of this kingdom sits in a valley before the mountains and like the vast majority of the other palaces, is sealed away. The enchantment that surrounds it looks like a dense fog and those who have said to try to find it, never come back.