In a conversation at the Faculty Club Kinbote (in VN’s novel Pale Fire, 1962, Shade’s mad commentator who imagines that he is Charles the Beloved, the last self-exiled king of Zembla) says that his book on surnames came out in Oxford:
Shade [addressing the German visitor]: "Professor Kinbote is the author of a remarkable book on surnames. I believe [to me] there exists an English translation?"
"Oxford, 1956," I replied. (note to Line 894)