Grandpa, what does Hangzhou mean?

Grandpa in Hangzhou belongs to the research category of folklore in Hangzhou, and is generally called the founder of academic schools, religious factions and all walks of life, or a person who has made great contributions to the formation of an industry. Industry ancestor worship is a branch of folk culture. In the past, all walks of life attached great importance to it and regarded it as the patron saint of this industry. Grandfathers are very prestigious people, who directly or indirectly created and supported this industry. Some people became ancestors by accident, some were forcibly placed by later generations, and some industries were ancestors of the same clan, such as pawn, fortune telling, incense, sericulture, silk weaving and cakes, all of which were based on Guan Yu.