Blackmarsh central borough
Since Blackmarsh is a city built on the water, there are a lot of bridges, especially in the central area.
There are four bridges leading into the Old Square, and in the lore of the city, the citizens successfully defended these bridges when the empire to the north invaded. In a recent one shot, the players took part in this siege, and discovered how the Empty Bridge got its name (dragons were involved!) but their main characters don't know it yet, so that's a fun piece of dramatic irony for everyone to enjoy.
Also, it turns out that when I first began, I called the Vice Provost of the city the Lord Protector, hence why his house is annotated as the L.P's palace. Consistency has never been my strong point.