Shahshahan Mausoleum is a historical mausoleum in Isfahan, Iran. It is located beside Jameh mosque and is the burial place of a famous Sufi of Isfahan, Shah Alaeddin Mohammad. According to the date of Shah Alaeddin's death, which was in the December 1446, the mausoleum was built between 1446 and 1448. Inside and outside of the mausoleum is decorated by calligraphy, plasterwork and tiling. Its dome, which had been destroying in the recent years, has been rebuilt, but the mausoleum is still in dire need of more repair work.HistoryShahshahan Mausoleum is one of the historical buildings in Isfahan. It is located in the northern part of the city, beside Jameh Mosque on Ibn-e Sina Street. The area around it is called Shahshahan Place. It is the burial place of Shah Alaeddin Mohammad also referred to as Seyyed Alaeddin Mohammad. He is the descended from the third Imam of the Shi'ites the grandson of the Prophet Mohammad, Imam Hossein. His ancestors are traced back with twenty four generations to the Prophet Mohammad. According to historian Jean Chardin, in the old days, this section of Isfahan was known as the area of Houseinieh, because it was believed that the great grandsons of Hossein, Ali’s son and Mohammad’s grandson lived there.