The patron of my home, the Baumeister household, naturally is the margrave of Breithilde.
The reason is that the margrave household of Breithilde gathered in the southern part of the kingdom, and thus for such reason many normal nobles, governing over their own territories from nearby places, gathered around them. It was also normal for the nobles in office at the central government to gather since the official positions were inheritable.
Actually, there are many like the Brandt family, which has inherited the job related to financial affairs for many generations. Viscount Mongérard was the vassal of Finance Minister Rückner and thus served as his trusted retainer.