+12 = 15 

ㄓㄥˋzhèng

  1. 西周時分諸侯一帶

Zheng state during the Warring States period, surname Zheng, abbr. for 鄭州[Zheng4 zhou1]
sérieux, (abrév.)​ Zhengzhou, (nom de famille)​
Familienname (Eig)​, Zheng (Eig, Fam)​