TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
PROBLEM: Category: ENTERTAINMENT 
Clue: This title character who debuted in 1999 was created by former marine biology educator Steve Hillenburg

SOLUTION: spongebob squarepants

PROBLEM: Category: EUROPEAN PRINCESSES 
Clue: On July 20, 1999 she gave birth to her fourth child, Princess Alexandra of Hanover

SOLUTION: princess caroline of monaco

PROBLEM: Category: BRITISH ROYALTY 
Clue: From the Latin for "greatest", this form of address was introduced by the narcissistic King Richard II

SOLUTION:
majesty