Alauddin Mahmud Syah I
sultan of Aceh

Sultan Alauddin Mahmud Syah I (died 1781) was the twenty-fifth sultan of Aceh in northern Sumatra. He ruled from 1760 to 1781, although his reign was twice interrupted by usurpers (1764–1765, 1773).
Troubled enthronement
Known in his youth as Tuanku Raja or Pocut Bangta, he was the son of the preceding Sultan Alauddin Johan Syah and a lady from the Asahan Sultanate. His father encountered internal opposition towards the end of his reign and died in August 1760. Tuanku Raja was proclaimed sultan under the name Alauddin Mahmud Syah. However, not all the regions heeded his claim. People from the XXII Mukims (one of the three regions or sagis of Aceh) held the prestigious Baiturrahman Grand Mosque in the capital and opposed the new sultan. They were eventually driven out by force. It was only in December 1760 that all the three sagis agreed to acknowledge Alauddin Mahmud Syah. The most influential person at the court was Mantri Makota Raja, a scion of the sultan's family of Siak Sri Indrapura who handled affairs on behalf of the young ruler.
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