Abdallah Bey (d. 1799)
Command Ratings
Abou-Saad (also rendered Abu Saad in some secondary compilations) is cited in Napoleonic-era campaign literature as the Ottoman commander at Jaffa (Yāfā) during Bonaparte’s Syrian expedition of 1799 and is specifically named as the commandant to whom Bonaparte addressed a surrender summons immediately before the French assault.
In the French narrative commonly circulated under the title Campagne de Syrie de Napoléon (printed in the nineteenth century and preserved in later reproductions), Bonaparte is described as sending an officer to “the commandant of Jaffa, Abou-Saad,” with an offer of safeguards in order to avert the destruction expected from an assault. The same narrative reports that shortly thereafter the French army saw the head of the parliamentary emissary displayed on the ramparts, after which Bonaparte renewed the bombardment and ordered the assault that carried the town on 7 March 1799.
Outside this identification—Abou-Saad as the Ottoman commandant of Jaffa at the moment of the French attack—readily accessible Western-language reference works do not consistently provide a fuller personal name in Ottoman Turkish or Arabic, a clear rank (such as aga or bey), a parentage or nisba, a provincial origin, or a traceable service record in other Ottoman operations of 1798–1801. As a result, his birth and death dates, earlier appointments, and later career remain undetermined in the standard modern biographical compendia consulted for Napoleonic officers, and he is best treated as an identified local commander associated with the defence of Jaffa in March 1799 rather than as a fully documented Ottoman general officer.
Maybe Abdallah Bey only Abou-Saad (أبو سعد - Father of Prosperity) as an honorific kunya. He was appointed by Ahmed al-Jazzar Pasha, the Governor of Acre and Sidon, to hold the port of Jaffa against the French invasion. From de la Jonquière, L'Expédition d'Égypte, Abd al-Rahman al-Jabarti, Aja'ib al-Athar, Sir Edward Cust, Annals of the Wars of the Eighteenth Century (Vol. V, p. 176), likely in Nathan Schur, Napoleon in the Holy Land (1999) if I can find it.
Sources
XX 98 defended Jaffa with Ottoman forces