First time in history the name Rönningberg was mentioned is the year 1424. On a parchment letter, dated November 28, 1424, the man Skofwe in Remisbergh is witnessing that WilhelmBjörnsson sells Hälle in Trång to Bjorn Ottarsson
(JHD I: 179).
The next time that the village is mentioned is April 28,1479 As witnessed byJon in Remisbergh a sister part of the farm Bye, Mörsil have been sold (JHD II: 13).
In 1529 Gunnar in Remmensbergh witness the sale of Truvbacken, Alsen. (JHD III: 146). The land book for the year 1546 mentioned Gunnar again. He Gunnar or Gunder named probably Hemmingsson was from Nordbyn. He also owned half of Trång and were a large landowner.
JHD is short for Jämtland and Härjedalen Diplomatarium.
The Diplomatarium comes in three parts and describes all known parchment letters from 1257-1530.
In these parchment letters there is much knowledge about our villages and farms.