Arakan was a muslim sultanate now was it? I must have missed that bit.
1. Burma historically, ethnically, culturally, politically and geographically is the 7 central divisions. The seven surrounding divisions do not belong to Burma and have kept on fighting the Burmese ever since the British left. Even Suu Ky in her book The Freedom From Fear candidly admits that whenever Burma was strong she occupied the surrounding regions, and again withdrew to the Burman heartland when weak. Arakan was never a Burmese territory except when occupied for brief periods by force of arm.
2. When the Crown Prince of Ava, Minye Kyaw Saw, under order from the king, invaded Arakan in 1404, Arakanese King Naramikhla fled to Bengal. The King of Ava had taken advantage of the internal squabbles razing in Arakan resulting from the king's impartial treatment of his Muslim subjects. Of Arab descent the Muslims had already become quite large and they were serving in the Arakan Army mostly.
3. Naramikhla went to the Bengal court at Pandua and sought assylum which was granted by Sultan Gyasuddin Azam Shah. Gyasuddin died in 1411 to be succeeded by Jalaluddin Mohammad Shah who had already become a close friend of Naramikhla being of same age. Naramikhla stayed in the Bengal royal court for 24 years when he was overwhelmed by the prosperity, happiness and the dynamic socio-cultural superiority of Bengal. Soon he understood the secret which lay in The Message of Islam. Therefore, he embraced Islam along with his accompanying courtiers and soldiers. His new-found brother named him Solaiman Shah.
4. With the assistance of the Bengal Army Solaina Shah regained his kingdom crushing the Burmese invaders. As the founder of the Sultanate he ruled upto 1434 when he died. The line of Soaliman Shah ended with Ali Shah (1525-1531).
5. Thereafter, Sultan Zabuk Sha (1531-1553) started a new dynasty which prospered till Sultan Salim Shah II (1622-1638). After him the Sultanate was weakened by palace intrigues and Buddhist conspiracies. Muslim rule finally came to an end with the inavsion by Bodaphawaya, king of Ava, in 1784.
6. Burmese / Buddhist tradition scuffs at alien culture. Therefore Buddhist historians have comfortably forgotten about this chapter. Whatever little reference is made the Sultans are shown as Buddhists! Arakanese Muslim monarchs judiciously maintained social/religious/racial harmony. Like other Muslim rulers of the region extending upto Sarawak they used an additional Pali title to appease their Buddhist subjects. I suspect the history read by alaungphaya mentions only the Pali titles.