the support, especially financial, that is given to a person or an organization by a patron
Patronage of the arts comes from businesses and private individuals.
the system by which an important person gives help or a job to somebody in return for their support
Bruckner showed how the changes in “ the patronage system that stretched from royalty to interested individuals defined the formative years in the material biography of European commercial maps.”
Source: Oxford Learners DictionaryFrom Bruckner, Martin. “ The Artisanal Map, 1750-1860” The Social Life of Maps in America, 1750-1860.