patron

1. patron; protector
   Bogati trgovac bio je patron mladog slikara. — A wealthy merchant was the young painter's patron.
2. (of a saint) patron saint
   Sveti Nikola je patron mornara. — Saint Nicholas is the patron saint of sailors.
3. dated (in older texts) owner; boss
   Stari patron kafane znao je svakog gosta po imenu. — The old owner of the kafana knew every guest by name.

Do not confuse with "patrona", a cartridge. In the sense "owner, boss" the word is found mostly in older texts; in contemporary speech in Serbia, gazda or vlasnik is usual.