Peace negotiations began, and in June 842 the brothers met on an island in the Saône, and agreed to an arrangement which developed, after much difficulty and delay, into the Treaty of Verdun signed in August 843.
Peace negotiations began. The brothers met on an island in the Saône. This was in June 842. The brothers agreed to an arrangement. This was in June 842. This arrangement developed into the Treaty of Verdun. This was after much difficulty and delay. This Verdun was signed in August 843.