Historical outline A general outline of Bilala history can be produced through both Bilala and foreign sources. The Bilala are first recorded to have been in conflict with the Sayfawa in the reign of the 14th-century Sayfawa
mai Dawud Nikalemi. Dawud was defeated and killed by the Bilala 1363, and the Bilala were able to capture
Njimi, the capital of
Kanem. Njimi was retaken by Dawud's successor,
Uthman I, The loss of Kanem prompted the Sayfawa to re-establish themselves west of Lake Chad, in the
Bornu region. The Bilala ruled Kanem until they lost the country 1630, whereafter they relocated to their present lands around Lake Fitri.
Rulers mentioned in Sayfawa girgams The history of the Kanem–Bornu Empire and its rulers is mainly recorded in the
girgam, a royal chronicle preserved over the centuries mainly through
oral history.
Girgams recording the line of the Sayfawa rulers also mention several Bilala rulers, though a complete line of rulers is not recorded. Similar names and details of these rulers are given in
girgams translated by Heinrich Barth in 1857
Histories One of the tales translated by Palmer (in several versions) is
The Bilala Secession from the Mais of Kanem, which records the Bilala conquest of Kanem and the decades that followed. Depending on the version,
The Bilala Secession records a single Bilala ruler (eponymously named "Bilala" or "Bulala") as conquering Kanem and ruling for a century, or a succession of three rulers: • Sultan Bilala (or Lefia) of Fitri, who conquered Kanem from the Sayfawa
mai Dawud and ruled for 25 years. • Sultan Sowi, who ruled for 32 years. • Sultan Yari bin Sowi, who ruled for 19 years and was defeated by the Sayfawa
mai "Ali Gaji". To make the chronology fit, Palmer identified "Ali Gaji" not as the Sayfawa
mai otherwise recorded as
Ali I Gaji, but as the earlier Sayfawa ruler
Gaji, who the Sayfawa
girgam contradictorily describes as having been killed by a Bilala ruler named Mohammed. Palmer suggested that Yari and Mohammed were two names for the same ruler, and that both names were later nicknames. Another tale,
The War Between the Bilala and Sayfawa, records Bilala history around the time of the Sayfawa
mai Idris IV Alooma. This tale includes a confused account of Sayfawa history; the Sayfawa
mais Ali I Gaji (builder of Ngazargamu) and
Ali II Zainami (Idris's father) are erroneously equated as the same person and
Aissa Koli is erroneously identified as the daughter of
Dunama II Dibalemi.
The War Between the Bilala and Sayfawa records that Ali married Amsa, daughter of the Bilala ruler Umr (Umar), who was Idris's mother. Idris eventually becomes ruler of the Sayfawa and later leads a campaign in which he defeats and kills his maternal grandfather Umr, also becoming ruler of the Bilala. After Idris, Mai Kunuma (or Mai Mala Ganami), son of Umr, becomes ruler of the Bilala and the Bilala relocate to the Lake Fitri region.
Lists (girgams) In
Sudanese Memoirs, Palmer translated three lists of Bilala rulers. These lists included a Bilala
girgam, with regnal years and some notes, as well as two name lists of rulers. Palmer titled the two name lists as
List of Bilala Mais of Kanem (List A) and
Origin of the Bilala Kings of Fitri According to the Manuscript of Sarkin Gulfei (List B). The lists do not differentiate between ancestral figures, Bilala rulers of Kanem, and Bilala rulers of Yao (Fitri). According to Palmer, the differences at the end of List A are due to a split in the Bilala lineage, with List A representing the branch of a Bilala prince named Shettima, not of the main line. Palmer believed both List A and List B to be faulty but stated that they supplemented each other, claiming that an approximate full list could be created by combining the two. Palmer also created a comparative list, where several figures were speculatively identified as the same, such as Othman ibn Affan in List A perhaps being the same figure as Muhammad el-Yamani in List B.
Hagenbucher's list Frank Hagenbucher wrote down a list of Bilala rulers in April 1967, published in 1968 as part of a larger collection of notes and observations on the Bilala. Hagenbucher's list is limited to the Bilala rulers of Yao, i.e. after their flight from Kanem. Hagenbucher's list begins with Mahamat Djil Essa Tubo, who Hagenbucher identified as the first sultan of Yao. == Recent rulers (late 19th century–present) ==