I thought as much. They tend to be the majority with unusual naming conventions. Let me see how close I can get here.
Your given name is, well, a given. Then I imagine it's either simply the patriarch's name or name with an honorific. Then either... mother's maiden name or... a location of origin and then maiden name. Or that's a peerage. It allows gets a bit complicated in the middle.
Then I imagine that the family name follows. The third... tricky. Because it could either mark your name's lineage or your own. I would say likely birth order of sons. Two older brothers, then?
The intimidation factor is still implied. But when one has an inherent measure of pull, it's a waste not to use it.