Nilfgaardian Embassy in Toussaint is located on the edges of Hauteville and Lassommoir districts in Beauclair, west of the city's cemetery. This two story building, guarded by experienced officers, serves as a place where Nilfgaardians living in the duchy can gather as well as the residence of Ambassador von Hinn. It's also a reminder that Toussaint is a vassal state to the Nilfgaardian Empire, no matter how independent the duchy is.
The Embassy also seems to organize balls from time to time where knights errant and other high class representatives are invited to attend.