patron saint — as in: a patron saint
Saint George is the patron saint of soldiers.
in some Christian denominations: a saint who is thought to look after a group, activity, or place
In ancient Roman history, patron referred to the more powerful person in a complex client-patron relationship. The term is still used in some cultures today to describe a property owner who is in charge of workers.
Also see patron saint.
Much more rarely, a patron is the proprietor of an inn.