Complex sentence: The Dečani chronicle describes Nemanjić dynasty, in particular Stefan Nemanja and his descendants including the death of Stefan Dečanski after he was first denigerated by his stemother Simonida.
Split into simpler sentences: The Dečani chronicle discuss members of the Nemanjić dynasty, in particular Stefan Nemanja and some his descendants. It describes the death of Stefan Dečanski after he was first denigerated by his stemother Simonida.