This beautiful mosque, with its high minaret and four domes, is Alexandria's largest and one of the most important Islamic monuments. In 1775 the Algerians built the mosque over the tomb of the thirteenth century Andalusian saint Ahmed Abu al-Abbas al-Mursi who had joined and then lead the Shadhali brotherhood. The interior is made up of eight monolithic granite columns and a colonnade of elongated arches. It was rebuilt in 1943 with the domes and the towering (73 meter) minaret. It is one of Alexandria's foremost religious buildings.