The protagonist commited a sin (namely, banged his sister), that is not really punishable legally. A bishop picked up on this and starts criticize him and with bribe from other opposition politicians, tries to use this as an excuse to kick him down of his position. Protagonist then use his government influence to slander the bishop with gay accusation, get him hanged for "being gay", and call for another bishop from Papal state that don't stick his nose in these kinds of matters. Protagonist's thought process basically goes like this: " I cannot ( and will not) prove my innocence, so I will slander you for being gay and make your word lose credibility, and since that would not hold for long until someone can prove you are not gay, I would have to physically silence you." So the problem here is, can a person be sentenced to death for being gay in 19th century europe? If not then I have to rewrite this plotline.