One important character is Merlin. He has great magical powers and knowledge that can assist Arthur in his encounter with the witch. He can foresee things and give Arthur strategic advice. Sir Gawain is also significant. He is known for his courage and loyalty to Arthur. When it comes to the witch situation, he may be one of the knights to stand by Arthur's side and fight. Then there's Morgan le Fay. She has her own magic and sometimes has a complex relationship with Arthur. She could be related to the witch in some way or be another factor Arthur has to consider in the story.
In Stephen King's stories, if there is a witch, she is often very menacing. She might have the power to control the minds of others. For example, she could make people do things against their will, like in some of his horror scenarios where characters are forced to act in strange and terrifying ways.
The Witch - King of Angmar was a powerful and terrifying figure. He was one of the Nazgûl, the Ring - wraiths. He led Sauron's forces in many battles. He was feared throughout Middle - earth. His very presence could strike fear into the hearts of his enemies. He was defeated in the end, but not without great struggle.
The story often involves the Lady of the Lake, who could be considered a kind of witch - like figure in the King Arthur legends. She gave Arthur the magical sword Excalibur. This was a crucial element as it was a symbol of his rightful kingship.
Since I don't have more information about this specific 'Death of a King: The Real Story', I can't say for sure which king it is. It could be any king from history.
The Witch - king is one of the Nazgûl, the Ringwraiths. In the story of his rise, he was once a great king of men who was corrupted by Sauron through the power of the Rings of Power. He became a fearsome servant of Sauron, leading the other Ringwraiths in the search for the One Ring and spreading fear across Middle - earth.
One of the common themes is revenge. In some fan fictions, the Witch King is seeking revenge for past wrongs done to him or his kind. Mortality is also a theme sometimes. Despite his power, the concept of his mortality or near - immortality is explored. And there's the theme of fear. His presence often instills fear, and how that fear affects the world around him is a common plot point.
In the King Arthur and the Witch story, the main plot often involves King Arthur facing a difficult situation related to the witch. Usually, the witch has some kind of power or knowledge that Arthur needs. For example, she might know the secret to a great treasure or how to defeat a powerful enemy. Arthur has to figure out how to deal with the witch, whether it's through negotiation, outwitting her, or in some cases, using force. This creates a lot of drama and adventure in the story.