The Queen of Hearts is a character from the book Alice's Adventures in Wonderland by the writer and mathematician Lewis Carroll. She is a foul-tempered monarch, that Carroll himself pictured as "a blind fury", and who is quick to decree death sentences at the slightest offense. Her most famous line, one which she repeats often, is "Off with their heads!" The Queen is referred to as a card from a pack of playing cards by Alice, yet somehow she is able to talk and is the ruler of the lands in the story, alongside the King of Hearts.
She is often confused with the Red Queen from the sequel, Through the Looking-Glass, although the two are very different. Alice is recommended, by three gardening playing cards (who are painting roses so that they are the right colour for the Queen), to drop down on the ground to avoid being confronted by her. She is confused, and having never met the Queen, ignores this advice.
When the Queen arrives and asks Alice who is lying on the ground (since the backs of all playing cards look alike), Alice tells her that she does not know. The Queen then becomes frustrated and commands that her head be severed. She is deterred by her comparatively moderate husband by being reminded that Alice is only a child.