Which Pevensie sibling is crowned King Peter the what?

Peter is crowned King Peter the Magnificent.

Peter Pevensie receives this title after leading Aslan’s forces against the White Witch and helping defeat her at the Battle of Beruna Ford. His full royal style is even grander: he is High King of Narnia, Emperor of the Lone Islands, Lord of Cair Paravel and a knight of the Order of the Lion.

Peter is the eldest Pevensie and acts as the group’s protector and military leader. His title, the Magnificent, marks both his authority and the legendary status of his reign. The four siblings rule together, but Peter holds the rank of High King and has supreme authority among the monarchs.

A frequent mix-up comes from the other Pevensie epithets. Susan is the Gentle, Edmund is the Just and Lucy is the Valiant. Peter’s title is not Valiant, although courage is certainly central to his role in the stories.