zhuān xū
Zhuanxu, one of the Five Legendary Emperors 五帝[wu3 di4], grandson of the Yellow Emperor 黃帝|黄帝[Huang2 di4], trad. reigned 2513-2435 BC
颛
zhuān
good
顼
xū
used in 顓頊|颛顼[Zhuan1 xu1]