Nilbog
Snotling Herder
A tavern name in a city can be an unreliable clue, since such businesses can change ownership, and change their name in the process.
Maybe when the map pieces are assembled, it triggers a Magic Mouth spell that verbally tells them the name of the establishment, and tells them to seek "the building marked with an X". When they get to the tavern, it consists of a main building which is the drinking establishment, plus a connected side building used for meetings and clubs. The side building is clearly labelled "Annexe".
I do love this idea and may well run with the magic mouth, I do however want the clue to be unreliable, I plan on having the tavern no longer exist by the name given, I want to use it as a driver for the players to get involved in exploring the town, both in terms of history and it's NPC's I'm hoping it will serve as a good way to get them familiar with a place that will form a big part of the adventure is set