Geri Koombe

The Geri Koombe (Somali: Geri Koombe, Arabic: جرئ كومبي ) is a sub-clan of Darod, an archaic prominent Somali clan with the first mention of Garadship, the Geri clan have produced notable figures such as Ahmed Gurey and his brother in law Garad Matan. During the early middle ages, the Gidaya Kingdom emerged as a significant power in the 12th century, later establishing itself as an autonomous polity allied with the Adal Sultanate.Thirteenth century Arab writer al-Mufaḍḍal documents a Geri king of Gidaya ruling Shewa named Yusuf ibn Aarsame Arab manuscripts also identify a later ruler known as Sihab al-Din Gidaya Girri, who is identified as the lord and principal ruler of Gidaya

The Geri Koombe are renowned for their Christian highland conquest in Abyssinia during the 16th century where they spearheaded the conquest of Abyssinia which resulted in the islamisation of nearly half of Ethiopia and the siege of Aksum. Three centuries later, a British explorer Sir Richard Burton came into the Geri country, In 1858, Garad Adan was the leader and he controlled the geography between Jigjiga and Harar, He had 5000 troops. To the north of Jigjiga was controlled by Garad Adam and to the South was Garad Hirsi of the Bertire. According to Richard Burton, Garad Adan was a relative of Amir Nur who was the ruler of Garad.