Nikolai Rogozhin: You find Madame attractive or no?
Sherlock Holmes: Oh, I find her most attractive… for a woman, that is.
Nikolai Rogozhin: Then no problem.
Sherlock Holmes: Maybe a slight one. You see, I am not a free man.
Nikolai Rogozhin: Not free? But you are a bachelor!
Anyone with basic qweer or victorian history will know Confirmed Bachelor was the polite obituary way of saying the guy that just kicked the bucket was gay.
And the fact that they reference it here is absolutely fantastic.
(yes that is basic Knowledge, I knew it when I was 14, how can that be anything but basic stuff. It’s listed in obits even to this day in some circles.)