Where is King Arthur conceived?

King Arthur is traditionally said to be conceived at Tintagel Castle in Cornwall, England. According to legend, his mother, Igraine, was tricked into sleeping with Uther Pendragon, Arthur's father, who had taken on the appearance of Igraine's husband, Gorlois. This act of deception leads to the conception of Arthur, who would later become the legendary king of Britain. The story integrates themes of destiny and magic, characteristic of Arthurian legends.