Leodegrance
father of Guinevere in Arthurian legend
King Leodegrance is one of the known Dragon Slayers in the Knights of the Round Table. He has slain the whole race of the dragons from 1200-1300 B.C. just before the Era of the New Age of Dragon Revolution in mid 600-1200 B.C. It was estimated that he killed around 60,000-100,000 dragons during his time. Most notably known for killing the Dragon King (Jemuelito Bahag).