What is the name of the "Zheng" in the middle of the Lian surname?

it can be named: even center (center, which means impartial, central point. )

Lian Zhengren (Zhengren, taken from Gentleman, refers to a person with good conduct. )

even the original (original, taken from the original Qingyuan) means to solve the problem fundamentally. )

Lian Zhengqi (Zhengqi means aboveboard style. )

for reference.