City of Deception
Each member of the trinity has the ability to veto any vote that is brought before the Voting Council, this veto is only allowed to be used once every 4 months, starting from the winter solstice. Also their own personal vote in the matters of the creation of law or for decisions within the council carries the weight of 3 votes.
The first Trinity was formed from the three major controlling factions within in the city; they all served until their deaths. The people who took their place were elected through the Voting Council and are typically elected for life or through self proclaimed retirement.