Point of clarification: Are you asking about historical openly gay world leaders? I ask because this might not be the best place for this question. There are current examples but they would break the 20-year rule of thumb for this sub.

Sorry, we don't allow throughout history questions. These tend to produce threads which are collections of trivia, not the in-depth discussions about a particular topic we're looking for. If you have a specific question about a historical event or period or person, please feel free to re-compose your question and submit it again. Alternatively, questions of this type can be directed to more appropriate subreddits, such as /r/history or /r/askhistory.