(I made a bunch of notes while up in Durham last month that I'm finally recycling into posts).
That moment when the hidden joke in a book you thought you knew well leaps out and clubs you in the head. Or in this case a series. Lois McMaster Bujold has always said the Barrayaran Vor in the Miles Vorkosigan books started out as tax collectors, jumped up government thugs, before becoming nobility. One of the characters in my novel-in-progress is the boss of the Seattle Vory v Zakone, the ‘Thieves in Law’, aka the Russian mob. Mostly I call him by name, but this time I wanted to call him by what he is, and the singular of Vory is Vor. As soon as I wrote that down the connection hit home and my jaw dropped. Bujold’s Vor have turned ‘thief’ into a title of nobility – and arguably one that’s all too applicable for tax collectors! Technically I think Miles just predates the rise of the modern Vory post Perestroika and the break-up of the Soviet Union, but the old Vory were about for most of the 20thC.
(It's possible Bujold has said this explicitly somewhere, but if she has I've missed it).