The phrase king sword on stone is likely referring to the legend of King Arthur and the sword in the stone. According to Arthurian legend, there was a magical sword embedded in a stone, and it was said that whoever could pull the sword from the stone would be destined to become the rightful king of Britain.

The story goes that many knights and warriors tried to extract the sword from the stone, but none succeeded until a young boy named Arthur, who was not a knight, came forward. With ease, Arthur was able to pull the sword from the stone, proving his destiny as the true king of England.

This tale is a significant part of the Arthurian legend and has been retold in various forms throughout history in literature, movies, and other forms of media. The sword in the stone represents the idea of divine right and the deserving ruler chosen by destiny.

It's important to note that the legend of King Arthur and the sword in the stone is a myth, and historical evidence supporting the existence of King Arthur is scarce. It is considered more of a literary and legendary tale rather than a factual historical event.