Complex sentence: The last king during Han Dynasty was Wu Chan, King Jing of Changsha, who died without an heir in 157 BC. After that there were no further Yixing Wang for the remainder of the Han Dynasty.
Split into simpler sentences: The last king in Han Dynasty was Wu Chan, King Jing of Changsha. He died without an heir in 157 BC. After that there were no Yixing Wang in Han Dynasty.