When his nephew died in 1857 , he was left the sole ruler and was secure on the throne until his demise in 1870 .
However , Alauddin Ibrahim Mansur Syah was able to maintain the capital Kutaraja .
When Alauddin Ibrahim Mansur Syah 's nephew died in 1857 , Alauddin Ibrahim Mansur Syah was left the sole ruler and was secure on the throne until his demise in 1870 .
However , Alauddin Ibrahim Mansur Syah was able to maintain the capital Kutaraja .