Here is an earlier go-round on this question. I gave this answer:
I made this name up when I was playing an early “dungeon”-type RPG from Infocom on a TRS-80. This was back in the 1970s, when there were no graphics to speak of and it was mostly a game of the imagination (and therefore extremely vivid). Each level of the 4-level dungeon took 10 minutes to load from a tape cassette, and it took weeks to play a game through.
One time the roll of the virtual 18-sided die (pseudo-random number generator) gave me a strong, skillful female warrior, and this is the name I made up for her. She had nearly solved the fourth dungeon when she tripped an arrow trap in the ceiling behind a secret door and went down in flames. Best alter ego I ever had. It was in her honor that I chose an image of a queen in armor as my avatar.
(My avatar was—still is—Cate Blanchett in her role as Elizabeth I, but I was using a different photo of her at the time.)