It comprises a roof of carved and painted cedar wood supported on twelve columns of carrara marble, as well as walls covered in elaborate geometric patterns in zellij tilework, Arabic calligraphic inscriptions, and vegetal motifs in carved stucco.[86][88] The chamber also contains the graves of his close family members and some of his successors, many of which are covered with horizontal tombstones of finely carved marble.[88] His chamber is adjoined by two other rooms, the largest of which was originally a prayer room, equipped with a mihrab, which was later repurposed as a mausoleum for members of the Alaouite dynasty.[88]