Sharif ‘Ali ibn ‘Ajlan ibn Rumaithah ibn Muhammad

Sharif Ali / Barkat Ali ibnu Sharif Ajlan ibni Sharif Rumaithah
3rd Sultan of Brunei
3rd Sultan of Brunei
Reign	1425 CE - 1432 CE
Predecessor	Sultan Ahmad
Successor	Sultan Sulaiman
Born	Ta'if,Sharifate of Mecca, Hijaz, Arabian Peninsula
Died	1432 CE
Burial	Near Kota Batu, Brunei-Muara District, Brunei, Borneo
Spouse	Puteri Ratna Kesuma (daughter of Sultan Ahmad)
Father	Sharif Ajlan ibn Rumaithah ibn Muhammad
Religion	Sunni Islam

Sharīf ‘Alī ibn ‘Ajlān ibn Rumaithah ibn Muḥammad (Arabic: الـشـريـف عـلي ابـن عـجـلان ابـن رمـيـثـة ابـن مـحـمـد‎‎) (also known as Sultan Berkat or The Blessed Sultan) was the third Sultan of Brunei, and son-in-law of the second Sultan Ahmad. He was also a scholar of Arab descent, originating from Ta'if in the Hejaz.

Sultan Sharif Ali was a descendant of Muhammad's grandson Hasan ibn Ali. In addition, Sharif Ali served as the Emir of Mecca, and was entitled "Al-Amīr Sharīf ‘Alī bin Sharīf ‘Ajlān bin Sharīf Rumaithah bin Sharīf Muhammad Abū Numā’ī Al-Awwal" (Arabic: الأمـيـر الـشـريـف عـلي بـن الـشـريـف عـجـلان بـن الـشـريـف رمـيـثـة بـن الـشـريـف مـحـمـد أبـو نـمـائي الأول‎‎). Sultan Sharif Ali was the ancestor of the Brunei and Sulu royal families.

He ascended the throne in 1425 CE, after Sultan Ahmad died without leaving any male descendants. However, the inauguration of Sharif ‘Ali did not solely come from the royal family of Sultan Ahmad. Both Brunei citizens and royal counselors agreed that Sharif Ali be the Sultan, because of his deep knowledge in Islam. His merit in spreading Islam was related to his position as a royal ‘ālim (Arabic: عَـالِـم‎‎, 'scholar') in Brunei, during the reign of Sultan Ahmad. For that reason, his marriage to Puteri Ratna Kesuma, the daughter of Sultan Ahmad, was aimed at strengthening his position as a Sultan and scholar. He was the first Sultan of Brunei with no genealogical relation to former Sultans of the Kingdom.

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