Idris Alooma

al-Ḥājj Idris IV (Idrīs bin ʿAlī), called Idris Alooma and Idris Amsami, was mai (ruler) of the Kanem–Bornu Empire in the mid-to-late 16th century and early 17th century, ruling approximately 1570–1603. In Idris's time, the empire covered parts of modern-day Chad, Cameroon, Niger and Nigeria. Idris's reign and achievements are primarily chronicled by Ahmad bin Fartuwa, his chief Imam. Idris's reign marked the end of conflicts with the Bilala of Kanem, securing the eastern side of Lake Chad under Sayfawa control. Furthermore, he introduced significant legal reforms based on Islamic law, establishing qadi courts that operated independently from the executive branch. He was credited with leading the empire to what is often regarded as its zenith during the late 16th century and early 17th century.

Bornu faced instability before his reign, including famines, raids from neighbours, and internal conflicts. By the end of his reign, Idris had successfully expanded Bornu's influence over vast territories, including the majority of Hausaland, the Tuareg of Aïr, the Tebu of Bilma, Tibesti, and even the Bilala of Kanem. Of particular note is the acquisition of Aïr and Bilma, which granted Bornu strategic control over the central Saharan trade routes. This development significantly contributed to the prosperity of Idris Alooma and his successors, enabling them to foster improved diplomatic relations with North African powers, notably Tripoli. 

During the late 16th century, the Ottoman Caliphate's expansion towards Fezzan, an important trade hub in the trans-Saharan trade, became a concern for Bornu. Alooma sought negotiations with Istanbul to regain control of Fezzan which Sultan Murad III declined, but urged amicable relations with Bornu. As tensions rose, Bornu sought aid from Morocco's Ahmad al-Mansur, potentially to counter Ottoman control. Though al-Mansur agreed conditionally, no historical evidence shows his actual support. Shortly after Bornu's final envoy to Morocco, between 1582–1583 and 1585, the entire Ottoman garrison in Fezzan was slaughtered, leading to the return of the Awlad Muhammad dynasty. Alooma may have strategically exploited the rivalry between Morocco and the Ottoman Empire to reclaim Fezzan.