In the late twelfth century, the communities in the valleys in Raetia were generally small and independent. There were very few large landholders and no central authority. For years blood feuds and battles had raged between the Lords of Belmont, Werdenberg, Rhäzüns and the Bishop of Chur as well as minor nobles. The constant warfare had seriously damaged trade and transportation in the region. To reduce the violence and encourage trade, the leaders and nobles of the valleys proposed forming a league or alliance. This alliance was known as the "Grey League".