Golan Vivaldi is a dwarf, and part of "The Vivaldis", a well known family of dwarven financiers. One of their banks is located in the nearby Trade Quarter, but it is now being run by new human owners after a hostile takeover. Actually, in one possible scenario, Vivaldi is being arrested by City Guards at his home when Geralt first finds him. Geralt must then bail him out of jail in order to speak with him.