Prince Caspian/The Voyage of the Dawn Treader (1989 TV serial) a dwarf named Trumpkin who is about to be drowned by two soldiers on a boat. The children tell him that they are the old Kings and Queens of Narnia, of which Trumpkin has heard of in the Narnian legends. Trumpkin tells the children the story of Prince Caspian, nephew of the current monarch, King Miraz. Caspian lived in a great castle with King Miraz and his wife Queen Prunaprismia. He has a tutor called Dr. Cornelius who one night woke him up because the Queen had given birth to a baby; with a direct heir, Miraz no longer needs
The Chronicles of Narnia: Prince Caspian of the Narnians manage to escape, but the rest are trapped by the closed gate and brutally slaughtered. Nikabrik tells Caspian that there is a way he can claim his throne and guarantee Miraz's death. When Caspian agrees, a hag uses black sorcery to summon the White Witch. From inside a wall of ice, the Witch tries to convince Caspian to give her a drop of his blood in order to set her free. Peter, Edmund, and Trumpkin arrive and dispatch Nikabrik while Edmund shatters the wall of ice before the Witch can be freed. Miraz and his army arrive