Ahmad ibn Ibrahim al-Ghazi
Additionally, Tiya is one of nine megalithic pillar sites in the central Gurage Zone of Ethiopia. As of 1997, 118 stele were reported in the area. Along with the stelae in the Hadiya Zone, the structures are identified by local residents as "Yegragn Dingay" or "Gran's stone", in reference to Imam Ahmad ibn Ibrahim al-Ghazi (Ahmad "Gurey" or "Gran"), ruler of the Adal Sultanate.