Often surnames have words in the middle.

Zi Jun, Zi Bo, Zi Shuo, Zhuo Zi, Angel,

Zi Bin, Zi Xue, Zi Tao, Zi Rui, Zi Ren,

Zi Zheng, Zi Sheng, Zi Feng, Zi Tai, Yu Zi,

Zi Hong, Zi Yi, Zi Yuan, Zi Hao, Zi Qiao,

Zizhou, Zijiang, Guo Zi, Zi Qi, Zijun,

. . . . . . . . . . . . . . . . .