If a boy is just called "Prince", it doesn't sound good. It’s best to add “Xuan” after the word “子”. Zi Xuan, how elegant!
For girls, it’s best to call them “Prince” (note, the pronunciation is the same, but the words are different), such as: Wang Ziqi, Wang Ziqi, Wang Zian... I’ll send you a picture. Well, there must be what you want in it