João de Barros (1552) Decadas da Asia (Decade I, Volume 8, Ch. 6). An English translation of Barros can be found in Theal (1900: p.239)
Dates utilize the list compiled in Bosworth (1996, p. 132) harvtxt error: no target: CITEREFBosworth1996 (help). Bosworth's dates are often inconsistent with Barros (1552), whose own dating is recorded below in the "ruled x years" format. Bosworth, Clifford Edmund (1996). The New Islamic Dynasties: A Chronological and Genealogical Manual. New Edinburgh Islamic Surveys. Edinburgh: Edinburgh University Press. ISBN0-7486-2137-7. João de Barros (1552–1559). Décadas da Ásia: Dos feitos, que os Portuguezes fizeram no descubrimento, e conquista, dos mares, e terras do Oriente. esp. Dec. I, Lib. 8, Cap. 6 (p. 225ff).
Unclear dates given by Bosworth (1996, p. 132) harvtxt error: no target: CITEREFBosworth1996 (help), who gives simply the range 999–1003 as possible ascension date for Dawud ibn Ali, gives a wide-open ascension date for Ali ibn Dawud (btw 1042–1111); Bosworth also omits Khalid ibn Bakr and Ali ibn Dawud II in his list. Following Barros (1552, pp. 227–28) more precise dating, assuming 996 to be correct for Ali ibn Bashat, then the dates of his successors are 1001 (Dawud ibn Ali), 1005 (Khalid ibn Bakr), 1007 (al-Hassan ibn Suleiman), 1023 (Ali ibn Dawud I), 1083 (Ali ibn Dawud II), 1089 (al-Hassan ibn Dawud), 1113 (Suleiman) after which Barros becomes unclear again. Bosworth, Clifford Edmund (1996). The New Islamic Dynasties: A Chronological and Genealogical Manual. New Edinburgh Islamic Surveys. Edinburgh: Edinburgh University Press. ISBN0-7486-2137-7. João de Barros (1552–1559). Décadas da Ásia: Dos feitos, que os Portuguezes fizeram no descubrimento, e conquista, dos mares, e terras do Oriente. esp. Dec. I, Lib. 8, Cap. 6 (p. 225ff).
Strong (1895, p. 389) claims al-Hassan fled to Zanzibar following a second invasion by the Changa, who installed a usurping emir Muhammad ibn al-Hussein al-Mundhiri. But the usurper was quickly toppled in a popular rising, and the exiled sultan al-Hassan was restored. Dates are problematic. Barros (1552, p. 226) claims al-Hassan ruled sixteen years and was succeeded by his nephew Ali ibn Dawud, who ruled sixty. But Bosworth (1996) harvp error: no target: CITEREFBosworth1996 (help) identifies Ali as only ascending around 1042, leaving the intervening gap unaccounted for. Strong, S. Arthur (January 1895). "The History of Kilwa, edited from an Arabic MS". Journal of the Royal Asiatic Society: 385–431. João de Barros (1552–1559). Décadas da Ásia: Dos feitos, que os Portuguezes fizeram no descubrimento, e conquista, dos mares, e terras do Oriente. esp. Dec. I, Lib. 8, Cap. 6 (p. 225ff). Bosworth, Clifford Edmund (1996). The New Islamic Dynasties: A Chronological and Genealogical Manual. New Edinburgh Islamic Surveys. Edinburgh: Edinburgh University Press. ISBN0-7486-2137-7.
