Peer-e-Sabz Pilgrimage. Story of the Peer: In the name of God. As it appears in historical and religious documents, as well as the legends passed amongst generations, during the reign of Yazdgerd the Third - the last Sassanid king - due to the continual destabilization of Iran, Yazdgerd thought to migrate his dynasty from Madaen to Yazd which was considered a relatively safe location. According to his orders, a city complete with all the protective measures of the day (including a moat, towers, and a perimeter fence) was created and his dynasty was migrated to that location; it is possible that the name Yazd is reminiscent of Yazdgerd and the remains of this ancient fort and moat could be in the old neighborhood of Yazaran. [translation incomplete]