Satrap

Satrap (SEY-trap) is

• a subordinate ruler, often a despotic one
• a governor of a province under the ancient Persian monarchy.

Satrap originated in the Old Persian from the literary prefix kshathrapavan, meaning "guardian of the realm".

"Datu Soliman governed the acres of land 500 miles from here for his brother, who had been ill for quite a long time. And since he is the satrap of that land he has to know everything about it including the neighboring lands."