In 1454 and 1455, he concluded the Treaties of Cölln and Mewe and thereby re-gained the Neumark (New March) from the Teutonic Order state. Weary of the long struggle with the Duchy of Pomerania, he abdicated in 1470 in favour of his younger brother Albert Achilles, he retired to the Bayreuth Principality and died one year later in Neustadt an der Aisch.
In 1454 and 1455, he concluded the Treaties of Cölln and Mewe and thereby re-gained the Neumark (New March) from the Teutonic Order state. Weary of the long struggle with the Duchy of Pomerania, he abdicated in 1470 in favour of his younger brother Albert Achilles, he retired to the Bayreuth Principality and died one year later in Neustadt an der Aisch.