The Sultan of Brunei is the head of state of Brunei. The royal lineage can be traced back to the 15th century. The 29 Sultans of Brunei (and their respective reigns) are: Muhammad (1405-1415) ...
In Daerah Brunei dan Muara, In a Massive palace.
Mainly Oil and Gas reserves.
What is Welfare email address of Sultan of Brunei
The answer is the vast amount of oil and gas reserves the country has