Had to do a reveal for the NW corner (and took quite a while to figure out JUPI needed to be JUPE so VENIPUNCTURE would have to become venepuncture, which still does not look right to me….). ANYhoo, I had given up the meta in frustration, thinking the odd clues were cryptograms (do NOT like cryptograms…), but later the presence of so many nudges at Muggles site gave me confidence to go at this again, and glad I did! I am the mnemonic QUEEN, because, well, the title. I can list lots of English painters, centuries of changing dynasties in the middle east, and many other very useless and obscure lists from history, because of mnemonics that have stuck in my head for years. Also the signs of cancer (C-A-U-T-I-O-N mnemonic, which I made up a tune to). Fun puzzle, after all!