Mansion d'la Count Nicholaus Watson

From Pirate Bitch

Home of the one and only Count Nicholaus Watson, the surrounding villages of London, Birmingham and Scotland suffer at the supreme generosity of Count Nicholaus. Commonly known to his friend as Cube... he has 13 of his best friends executed in 1701 for "attempted singing" It is alledged that he has much to do with the fall of local fat man Nathan Page

Mansion d'la Count Nicholaus Watson can be found in Diagon Ally.

Here is a picture of Count Nicholaus' humble mansion.