Complex sentence: The following chart is a family tree of the kings of the House of Wessex, a dynasty whose members were Kings of Wessex, from the traditional first king of Wessex, Cerdic, down to the children of Alfred the Great.
Split into simpler sentences: The following chart is a family tree of the kings of the House of Wessex, a dynasty whose members were Kings of Wessex. The chart shows their (claimed) descent from the traditional first king of Wessex, Cerdic, down to the children of Alfred the Great.