What is common knowledge:
This is the second attempt to establish a permanent barony at Winterwall. The first attempt took place approximately 75 years ago. That attempt failed because Winterwall is completely separated from the rest of civilization for the three months of winter. During those months, Winterwall was destroyed. When trade resumed in the summer the caravans found no man, woman, or child alive. What they did find were gnawed bones and burned out buildings.
The Kingdom was undergoing difficult times during the sacking of the first Winterfall and did not have the resources of men or money to rebuild at that time. After a pause of 40 years a rebuilding was attempted, and the current barony has been in existence for nearly 35 years. In the year 1100, it is the second year of the rule of the young Connall of Winterfell.