Yabla video uses of 人称

jiā
yǒu
人称 rénchēng
The Li family had a daughter, named Ziqi.
jiǎng
de
shì
第三 dìsān
人称 rénchēng
He used the third person point of view.
Liú
chūn
zhāng
人称 rénchēng
lǎo
Liú
shì
龙华 Lónghuá
素面 sùmiàn
de
负责人 fùzérén
Liu Chuna Zhang, a.k.a. Liu, is the person in charge of the veggie noodles department of Longhua Temple.
人称 rénchēng
huó
hóu
zhāng
People called him "Huo Hou Zhang."
江湖 Jiānghú
人称 rénchēng
zi
He was known by those in the field as "Ricci."
bié
人称 rénchēng
wéi
什么 shénme
ne
Why did others call him this?