Given the following context:

The Frog Prince begins with the protagonist Princess Zora rolling over and waking up in her bed. When she hears royal trumpets signifying an important announcement, she sings "Lucky Day" as she gets dressed. She holds onto her golden lucky ball, and carries it throughout her day for good luck. Zora runs through the castle and the Emissary and chef scold her for not acting 'like a princess'. Then, Zora is confronted by Henrietta and Henrietta's friend Dulcey in the hallway, where Henrietta lies to Zora, telling her that they are allowed to interrupt the King that day. After Zora leaves, Henrietta tells Dulcey that she intercepted a letter which declared that only her or Zora is a true princess, not both.
Meanwhile, the King, surrounded by his advisors, reads the letter which declares that Baron Von Whobble will decide the true princess at the Sunset Dance. The King is upset because he made a promise to care for both of his nieces (Henrietta and Zora) when his sister died. He then sings "A Promise is A Promise" with his royal advisors. Princess Zora interrupts the meeting to ask about the trumpet announcement, but becomes too shy to ask when the King gets upset at her for interrupting.
After Zora leaves the King, she goes to ask Henrietta why she lied earlier. Henrietta ignores her question as she and Dulcey look through a book of eligible bachelors. They turn the page to see the handsome Prince of Freedly. The book says that a witch put a curse on him and that he has been missing for a year. When Zora asks to see, Henrietta banishes her from the room. That night at dinner, Henrietta arrives elegantly and is praised by the royal advisers. When Zora walks in dressed in a feathered cape, the advisors, Henrietta, and Dulcey laugh at her for looking silly. As Zora realizes she is being made fun of, she flees from the room. Her Uncle, the King, watches sadly, feeling pity for his niece.

answer the following question:

Who owns a ball? 

Princess Zora