The sarcophagi of the Norman kings William I and William II are placed at the end of the right aisle of the Monreale Cathedral. William I, known as “the Bad”, rests in a red porphyry sarcophagus, commissioned by his son. The sarcophagus of William II, the founder of Monreale, is made of white marble and was built by Archbishop Ludovico I de Torres. After the fire of 1811, the tomb of Margaret of Navarre was rebuilt, as it was badly damaged, and placed at the end of the left aisle. In the northern arm of the transept, there is a monument commemorating Louis IX, King of France, and the wall tombs of Roger and Henry of Hauteville, the sons of William II.