On the south, west and north sides of the Rotunda are semicircular conches. In the west conch, opposite the Coptic Chapel, is a chapel of the Syrian Christians (Jacobites), in which, on the left, is the entrance to a rock-cut tomb. It is traditionally ascribed to Joseph of Arimathea, who also provided the tomb for Christ (Matthew 27,60). It is still in its original condition, without marble cladding.
