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.
Anna of Eppstein-Königstein (Königstein, 1481 – Stolberg, 7 August 1538) was the daughter of Philip I of Eppstein-Königstein and his wife, Louise de la Marck.
These duties were Marck's chief occupation till 1789, apart from them, having married in 1776, Marck led an agreeable life, alternately at Raismes, his country residence near Valenciennes, and at Versailles, where his rank and position gave him the means of observing all that was passing, which he appears to have noted with care and tolerable impartiality.
Richarda of the Marck, wife of Bernard V, Lord of Lippe who, upon his death before 1365, gave his lands to first Otto VI of Tecklenburg, then to Simon III, Lord of Lippe, starting a decades-long feud