I think queen sounds like someone who thinks they're worth a lot more than they actually are.

A good example would be something like Jessie from Pokemon's Team Rocket.

Personality (from Wiki)

Queen is a relatively nonchalant person, who seems to be calm towards her goals of world domination. She is willing to compromise and make a truce with Kris during their time in the city. During said compromise, she acts quite friendly towards them. But she still proves to be capable of fighting as seen during her battle. After she is defeated, she tells Noelle to "Choose The World That Makes You Happy."

She seems reluctant on controlling people she likes, and would rather they willingly go along with her plan, to make them happy. She is also prone to giving people pet names and fun adjectives.