Although Maximilian Francis still retained his territories on the right bank of the Rhine, including Münster and the Duchy of Westphalia, the Elector, plagued by corpulence and ill-health, took up residence in Vienna after the loss of his capital and remained there until his death at age 45 in 1801, at Hetzendorf Palace.
His successor, Dietrich II of Moers witnessed the last attempts by Cologne to gain rulership in Westphalia by attempting to break the powerful positions of Cleves and Marck.
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The Archbishop Frederick von Saarwerden began a hopeless campaign to maintain Colognian rights in Marck, and in 1392 was forced to abandon them.
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Adolf of Osnabrück, O.Cist (also known as Adolphus, Adolph, Adolf of Tecklenburg), was born in Tecklenburg about 1185, a member of the family of the Counts of Tecklenburg in the Duchy of Westphalia.
It was formed by the temporal possessions of the archbishopric and included in the end a strip of territory along the left Bank of the Rhine east of Jülich, as well as the Duchy of Westphalia on the other side of the Rhine, beyond Berg and Mark.
1604 he attended school at Medebach in the Duchy of Westphalia; as a Protestant, he moved to Sachsenhausen in the Duchy of Waldeck in 1606.
The Reichsdeputationshauptschluss of 1803 secularized the rest of the archbishopric, giving the Duchy of Westphalia to the Landgraviate of Hesse-Darmstadt.