 His brother Duke Henry chose to conclude a peace agreement with the emperor but remained a bitter enemy.Emperor Henry already was concerned with the deposition of the Welf supporter Archbishop Hartwig II of Bremen.He further had to arbitrate in a conflict in the Margraviate of Meissen on the eastern border of the Empire, where the Wettin margrave Albert I had to fend off the claims raised by his brother Theoderic and Landgrave Hermann of Thuringia.