High advisor
A high advisor was a diplomatic title held by the leader of Ardana's planetary council. He was properly addressed as "Mister Advisor". 

The high advisor was given several rights and responsibilities on Ardana, ranging from conducting welcoming ceremonies for off-world visitors, to issuing planet-wide policies – up to possessing the authority to have lawbreakers, even lawbreaking Starfleet officers, executed. 

In 2269, the position of high advisor was held by Plasus. ()

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