Question: Which Lieutenant Governor of California issued proclamations for "Exotic Erotic Ball Day" in San Francisco? 
Sentence (from "Exotic Erotic Ball"): Due to the worldwide popularity of the event the City of San Francisco issued three proclamations for “Exotic Erotic Ball Day”, twice by Mayor Willie Brown in 1999 and again in 2001, and once by Mayor Gavin Newsom in 2004.
Relevant evidence: Yes