Reply To: Minhag for a Chosson to move to wife’s city

I don’t know if there is a source. Simple fact was that in Europe, the chassan and kallah were generally supported by the kallahs family so they lived either in the same house or town with her parents. This is also the reason why women generally did not marry someone whose name was the same as their father’s and why the first child is generally named for someone in the kallah’s family.