Sayyed Mir Ahmad, one of Imam Reza’s 17 brothers, was hunted down and killed by the caliphate on this site in AD 835. His remains are housed at the glittering Aramgah-e Shah-e Cheragh. A mausoleum was first erected over the grave during the 12th century but most of what you see dates from the late-Qajar period and the Islamic Republic; expansion is ongoing.