Sir Galahad
One of the Arthurian knights of the Round Table that found the Holy Grail is Sir Galahad. He is known for his bravery and purity as the most faultless of all knights. He is the illegitimate son of Sir Lancelot du Lac and Lady Elaine of Corbenic. Sir Galahad entered the medieval Arthurian narrative relatively late. He initially appears in the Lancelot-Grail cycle, and later works like Sir Thomas Malory's Le Morte d'Arthur and the Post-Vulgate Cycle continue his story.
He defeats Lancelot in a duel with his father, earning his father's knighthood. Soon after, he is led to the Round Table and told to take the one vacant seat, which is the Siege Perilous reserved for the knight who successfully returned with the Holy Grail.
Additionally, it was said that Gallahad had a stone-forged sword with engravings proclaiming its owner to be the greatest person in the universe. King Arthur eventually realized how much Gallahad resembled him and proclaimed him the most ideal knight.
He was renowned for his bravery and was thought to have been destined from birth to be the Holy Grail's hunter. He was without a doubt the greatest and most exceptional knight who outperformed his father and did not perish during the journey like the other knights.