Prince Caleb

Prince Caleb Westergaard is a supporting antagonist of the 2015 novel A Frozen Heart based on the 2013 Disney film Frozen. He is the eldest son of King Westergaard and the oldest brother of Prince Hans.

History
As the first son of King Westergaard, Caleb was considered to be his father's favorite of all 13 princes and the one to inherit the throne. Despite being his father's favorite, Caleb was known to be irresponsible in his duties and ignores his own family of gaining more of his father's approval.

Along with his brothers (except for Prince Lars), Caleb enforced his father's will in enforcing high taxes against their people and enjoyed tormenting Hans for their own amusement, and King Westergaard did nothing to stop it and instead encouraged them to continue abusing Hans in hopes of toughening him up. Caleb was also shown to be ignorant towards his own wife, and both Hans and Lars believe that Caleb is unfit to be declared as king because of his behavior.

As such, Hans vows to move out from the Southern Isles and find another kingdom so that he can become a better ruler than Caleb himself. He senses an opportunity when Princess Elsa is about to be crown Queen of Arendelle. Upon hearing of the imminent event, King Westergaard reluctantly allows Hans to attend the event, on the condition that he return back so that he can watch over his brothers' children.

Formulating a plan for power due to the trauma inflicted by King Westergaard, Hans tries to get himself into marrying either Elsa or her sister Anna so that he could kill them and secure his new power as the new King of Arendelle. However, he is foiled and ends up being sent back on a ship to the Southern Isles for punishment. It can be implied that King Westergaard has gotten Caleb and the other princes to subject Hans to a severe punishment for his failure, much to Hans' dismay.