Cantonese, or Standard Cantonese, is a variety of Chinese spoken in the city of Guangzhou (known historically as Canton) in southeastern China. It is the traditional prestige variety of Yue, one of the major subdivisions of Chinese.
A prince is a male ruler or member of a monarch's or former monarch's family. Prince is also a title of nobility, often hereditary, in some European states. The feminine equivalent is a princess. The English word derives, via the French word prince, from the Latin noun princeps, from primus (first) + capio (to seize), meaning the chief, most distinguished, ruler, prince.
A prince, princess, or royal duke is a highness, while a monarch is a majesty, in the British system. This system has gone by the wayside for those who are not peers. The use of gentleman after one's name ended around WWI, and the use of Esquire is in decline today, and it's use much disputed.