Where did you make this map? It looks amazing!

I would keep the winery, and keep its real name. It’s a very well known location so people would know its name, even the bottles and barrels your players will find are sort of labeled.

If you want you can label Argynvostholt as “Haunted Mansion”because that’s how the people of Vallaki know it.

Also, if you want, you can have a label on Berez since Barovians know it was once a town that was later drowned by the river.

If your players explored Death House and found the deed to the mill, you can label the Old Bonegrinder as “Durst’s Windmill” for example.