Complex sentence: In Naitschau on 18 August 1724, Christian Ernst married unequally with Christiane Fredericka of Koss; for this, his younger half-brother Franz Josias reclamed the full succession of the duchy.
Split into simpler sentences: In Naitschau on 18 August 1724, Christian Ernst married with Christiane Fredericka of Koss. The union was morganatic and for this, his younger half-brother Franz Josias reclamed the full succession of the duchy.