Upper Sodden is the southern part of the former kingdom of Sodden, the area around the Yaruga river between Cintra, Brugge and Riverdell. In the aftermath of the Nilfgaard Wars, Sodden was divided between Nilfgaard who assumed the rule of into Upper Sodden and the Northern Kingdom of Temeria who assumed the rule of Lower Sodden.
After the split, Upper Sodden became part of the Nilfgaardian province of Cintra, but not everyone was happy, and an anti-Nilfgaard group was born in the Slopes. After the Peace of Cintra, it was reunited with Lower Sodden under Temerian rule.
The coat of arms for Upper Sodden is not actually described in the novels. These particular coats of arms were designed by our resident heraldry and Witcher expert Mboro.