Bedivere

Sir Bedivere was among the first Knights of the Round table, and he remained faithful to the King until the end. Although he was the one who closest guarded the King, he never saw her smile nor learned of her identity as a woman. After attending the King's death he found himself initially unable to return Excalibur to the Lady of the Lake, for that would signal Artoria was truly gone. Though sad the hard work of his King was not properly rewarded, he understood her Fate could not be changed and finally returned the Sword, hoping she would find a peaceful slumber. In Fate/Grand Order Divine Realm of the Round Table: In this version of History he was unable to return Excalibur, making it impossible for Artoria to pass away and reach Avalon. He has been wandering the Earth for 1500 years, wrought with guilt, trying to finally complete the task the King assigned him