The Askiya Dynasty, also known as the Askia Dynasty, ruled the Songhai Empire at the height of that state's power. It was founded in 1493 by Askia Mohammad I, a general of the Songhai Empire who usurped the Sonni Dynasty. The Askiya ruled from Gao over the vast Songhai Empire until its defeat by a Moroccan invasion force in 1591. After the defeat, the dynasty moved south back to its homeland in the Dendi region of modern Niger. There they established the Dendi Kingdom and ruled until the beginning of the 20th century.
After Sonni Ali's death in 1492, one of his sons, Sonni Baru, became ruler of the Songhay Empire. He was immediately challenged for the leadership by Muhammad (son of Abi Bakr) who had been one of Sonni Ali's military commanders. In 1493 Muhammad defeated Sonni Baru in battle and in so doing brought an end to the Sonni Dynasty. Muhammad adopted the title of 'Askiya'. The origin of the word is not known. The Tarikh al-Sudan gives a 'folk etymology' and explains that the word derives from a Songhay expression meaning "He shall not be it" used by the sisters of Sunni Ali. The Tarikh al-fattash, in contrast, mentions that the title had been used previously. The early use of the title is supported by the discovery of tombstones (stellae) with the Askiya title dating from the 13th century in a cemetery in Gao.
A patrilineal system of succession was used in which power passed to brothers before passing to the next generation. Some of the Askiya rulers had a large number of children creating great competition and sometimes fratricide. Margin notes in one manuscript of the Tarikh al-Sudan indicates that Askiya al-hajj Muhammad had 471 children while Askiya Dawud had 333. The Tarikh al-fattash states that Askiya Dawud had 'at least 61 children', of whom more than 30 died as infants.
At the time of the Moroccan invasion in 1591, the empire was ruled by Askia Ishaq II. After his defeat, Askiya Ishaq II was deposed by his brother, Askiya Muhammad Gao. The Moroccan military leader, Pasha Mahmud, set a trap for Askiya Muhammad Gao and gave orders for him to be killed.  Sulayman, another brother of Askia Ishaq II, then agreed to cooperate with the Moroccan army and was appointed as a puppet Askiya in Timbuktu.  Yet another brother, Nuh, became Askiya in Dendi, a region south of the modern town of Say in Niger. From Dendi Askiya Nuh organised a campaign of resistance against the Moroccan forces.
The 17th century Timbuktu chronicles, the Tarikh al-Sudan and the Tarikh al-Fattash, provide dates for the reigns of the Askiyas from the time of Askiya Muhammad usurping the leadership until the Moroccan conquest in 1591. The Tarikh al-Fattash ends in 1599 while the Tarikh al-Sudan provides information on the Askiyas in Timbuktu up to 1656. John Hunwick's partial translation of the Tarikh al-Sudan ends in 1613. Hunwick includes a genealogy of the Askiya dynasty up to this date. The later sections of the Tarikh al-Sudan are available in a translation into French made by Octave Houdas which was published in 1898-1900. Information on the dynasty after 1656 is provided by the Tadhkirat al-Nisyan. This is an anonymous biographical dictionary of the Moroccan rulers of Timbuktu written in around 1750. For the earlier entries the text is copied directly from the Tarikh al-Sudan. The Tadhkirat al-Nisyan also provides some information on the collaborating Askiya rulers based in Timbuktu. Elias Saad has published a genealogy of the Askiya dynasty.
After the conquest of areas of West Africa at the end of the 19th century, the French government commissioned Jean Tilho to undertake a survey of the people in the occupied territories. In the Denki region the rulers of the small towns of Karimama, Madékali and Gaya claimed descent from the Askiya dynasty of Gao. These town are near the modern border between Niger and Benin. The published report provides a genealogy but does not indicated how the information was obtained nor whether it is likely to be reliable. At the time of Askiya Fodi Maÿroumfa (ruled 1798-1805) the Dendi kingdom split into three separate kingdoms with capitals in the above three towns.
Askiya Dynasty of the Songhai Empire
- Askiya al-hajj Muhammad, son of Abi Bakr: 1493-1529
- Askiya Musa, son of Askiya al-hajj Muhammad: 1529-1531
- Askiya Muhammad Bonkana, son of Umar Komadiakha: 1531-1537
- Askiya Isma'il, son of Askiya al-hajj Muhammad: 1537-1539
- Askiya Ishaq I, son of Askiya al-hajj Muhammad: 1539-1549
- Askiya Dawud, son of Askiya al-hajj Muhammad: 1549-1582 or -1583
- Askiya [Muhammad] Al-Hajj, son of Askiya Dawud: 1582-1586
- Askiya Muhammed Bani, son of Askiya Dawud: 1586-1588
- Askiya Ishaq II, son of Askiya Dawud: 1588-1592
Moroccan Conquest: 1591
Askiya Dynasty in Timbuktu
- Askiya Sulayman, son of Dawud: 1592-1604
- Askiya Harun, son of Al-Hajj: 1604-1608
- Askiya Bakr Kanbu, son of Yaqub: 1608-1619
- Askiya Al-Hajj, son of Kisha: 1619-1621
- Askiya Muhammad Bankanu, son of Muhammad al-Sadiq: 1621-1635
- Askiya Ali Zalil, son of Kisha: 1635
- Askiya Muhammad Bankanu, son of Muhammad al-Sadiq: 1635-1642
- Askiya Al-Hajj, son of Muhammad Bankanu: 1642-1657
- Askiya Dawud, son of Harun: 1657-1668
- Askiya Muhammad al-Sadiq, son of Al-Hajj: 1668-1684
- Askiya Muhammad, son of Al-Hajj: 1684-1702
- Askiya Abd al-Rahman, son of Umar: 1705-1709
- Askiya Bakr, son of Muhammad al-Sadiq: 1709-1718
- Askiya Al-Mukhtar, son of Shams: 1718-1724
- Askiya Al-Hajj, son of Bakr: 1730-1748
- Askiya Mahmud, son of Ammar: 1748- ?
Askiya Dynasty of the Dendi Kingdom
The Tarikh al-Sudan includes a list of the Askiya rulers of Dendi. They were all descendants of Askiya Dawud who had ruled in Gao between 1549 and 1582. The list of Askiyas provides no dates but in a few cases the list specifies the length of their reigns. Most of the Askiyas based in Dendi are not mentioned elsewhere in the Tarikh al-Sudan, but for those that are, it is sometimes possible to date their reigns. There were usually succession struggles and some of the reigns were very short. In 1639 Pasha Mesaoud sacked the town of Lulami in Dendi where Askia Ismail was based. The location of Lulami is not known and the chronicle does not specify whether Lulami was a permanent capital. The Tadhkirat al-Nisyan makes no mention of Dendi or its rulers.
- Askiya Muhammad Gao, son of Dawud: 1592
- Askiya Nuh I, son of Dawud: c. 1592-1599
- Askiya al-Mustafa, son of Dawud
- Askiya Muhammad Sorko-ije, son of Dawud
- Askiya Harun Dankataya, son of Dawud
- Askiya al-Amin, son of Dawud: 1611-1618
- Askiya Dawud II, son of Muhammad Bano: 1618-1639
- Askiya Ismail, son of Muhammad Bano: c. 1639
- Askiya Muhammad, son of Anasa: 1639
- Askiya Dawud III, son of Muhammad Sorko-ije: 1639-
- Askiya Muhammad Borgo, son of Harun Dankataya
- Askiya Mar-Chindin, son of Fari-Mondzo Hammad
- Askiya Nuh II, son of al-Mustafa
- Askiya Muhammad Al-Borko, son of Dawud II
- Askiya Al-Hajj, son of Dawud II
- Askiya Ismail, son of Muhammad Sorko-ije
- Askiya Dawud III, son of Muhammad Sorko-ije: in power in c. 1655 when the Tarikh al-Sudan was written
The report of the Tilho commission includes a list of rulers of Gao and then of Gaya in the region of Dendi. The early names do not match those in the lists above. The spelling below is as used in the report.
- Askiya Maammarou, son of Kasseï: legendary ruler of the dynasty (based in Gao)
- Askiya Daouda, son of Maammarou (based in Gao)
- Askiya Karbachi Binta, son of Daouda (based in Gao)
- Askiya Morobani, son of Daouda (based in Gao)
- Askiya El Hadjj Hanga, son of Ismaïla, son of Morobani: -1761 (came from Gao to Dendi)
- Askiya Samsou-Béri, son of El Hadjj Hanga: 1761-1779
- Askiya Hargani, son of El Hadjj Hanga: 1779-1793
- Askiya Samsou Keïna, son of Morobani: 1793-1798
- Askiya Fodi Maÿroumfa, son of Samsou-Béri: 1798-1805
- Askiya Tomo, son of Samsou-Béri: 1805-1823
- Askiya Bassarou Missi Izé, son of Samsou-Béri: 1823-1842
- Askiya Boumi a.k.a. Askia Kodama Komi, son of Samsou-Béri: 1842-1845
- Askiya Koïzé Babba, son of Tomo: 1845-1864
- Askiya Koïzé Babba Baki, son of Fodi Maÿroumfa: 1864-1865
- Askiya Ouankoÿ, son of Tomo: 1865-1868
- Askiya Biyo Birma, son of Tomo: 1868-1882
- Askiya Doauda, son of Bassarou: 1882-1887
- Askiya Malla, son of Tomo: 1887-1901
- Askiya Igoumou, son of Bassarou: 1901-1905
French conquest: 1901
- Hunwick 2003, pp. 100-102.
- Hunwick 2003, p. 335.
- Hunwick 2003, p. 103.
- Kâti 1913, p. 88.
- Moraes Farias 2003, p. l.
- Hunwick 2003, p. 180 n40.
- Hunwick 2003, p. 184 n68.
- Kâti 1913, p. 215.
- Hunwick 2003, p. 198.
- Hunwick 2003, p. 201.
- Hunwick 2003, p. 203.
- Hunwick 2003, p. 364.
- es-Sadi 1898-1900.
- Houdas 1901.
- Saad 1983, p. 253 Appendix 18.
- Tilho 1911, pp. 505-510 Volume 2.
- Hunwick 2003, pp. 336-337.
- Kâti 1913, p. 217
- Houdas 1901, pp. 289-297.
- Year of death given in the Tarikh al-Sudan (es-Sadi 1898-1900, p. 342)
- Askiya Al-Mukhtar died in 1724 giving a 6-year gap before the appointment of his successor. (Houdas 1901, p. 85).
- el-Sadi 1898-1900, pp. 470-473.
- es-Sadi 1898-1900, p. 400.
- The Tarikh al-Sudan states that Askiya Nuh ruled for 7 years.
- The Tarikh al-Sudan states that al-Amin ruled for 7 years. The date of 1618 for the death of al-Amin and the succession of Askia Dawud II is mentioned in the Tarikh al-Sudan es-Sadi 1898-1900, p. 341
- The Tarikh al-Sudan states that Dawud II ruled for 22 years.
- es-Sadi, Abderrahman (1898–1900), Tarikh es-Soudan, Houdas, Octave ed. and trans., Paris: E. Leroux. (Vol. 1 contains the Arabic text, Vol. 2 contains a translation into French). Internet Archive: Volume 1; Volume 2; Gallica: Volume 2.
- Houdas, Octave (ed. and trans.) (1901), Tedzkiret en-nisiān fi Akhbar molouk es-Soudān (in French), Paris: E. Laroux. The anonymous 18th century Tadhkirat al-Nisyan is a biographical dictionary of the pashas of Timbuktu from the Moroccan conquest up to 1750. It also contains a list of the Timbuktu based Ashiyas on pages 289-297.
- Hunwick, John O. (2003), Timbuktu and the Songhay Empire: Al-Sadi's Tarikh al-Sudan down to 1613 and other contemporary documents, Leiden: Brill, ISBN 978-90-04-12822-4.
- Kâti, Mahmoûd Kâti ben el-Hâdj el-Motaouakkel (1913), Tarikh el-fettach ou Chronique du chercheur, pour servir à l'histoire des villes, des armées et des principaux personnages du Tekrour (in French), Houdas, O., Delafosse, M. ed. and trans., Paris: Ernest Leroux. Also available from Aluka but requires subscription.
- Moraes Farias, P.F. de (2003), Arabic medieval inscriptions from the Republic of Mali : Epigraphy, chronicles and Songhay-Tuareg history, Oxford: Oxford University Press, ISBN 0-19-726222-8.
- Saad, Elias N. (1983), Social History of Timbuktu: The Role of Muslim Scholars and Notables 1400–1900, Cambridge University Press, ISBN 0-521-24603-2.
- Tilho, J. (1911), Documents Scientifiques de la Mission Tilho (1906-1909) (3 volumes) (in French), Paris: Imprimerie Nationale.