Last name help for von ___.

I need help finishing up a character’s name. Her fist name will be [name_f]Siouxsie[/name_f] (which is pronounced like [name_f]Susie[/name_f], fyi) and the last name will most likely start with von.

[name_f]Siouxsie[/name_f] von _____. What should go in the blank?

This name is for a character in a story that I will most likely never publish or anything, by the way. It’s just for me. (If this were a serious story that I was actually planning on publishing, I probably wouldn’t have chosen a name like Siouxsie.)

The last name doesn’t have to have the von, by the way.