potentate (noun)

1. In the futuristic dystopian world of the comic series, a potentate rises to power and enforces authoritarian rule over the population.

2. In the science fiction novel, a powerful potentate controls the entire galaxy and governs with an iron fist.

3. The epic fantasy novel features a malevolent potentate who seeks to dominate the kingdom and suppress any opposition.

4. The grand palace, built in the style of a potentate's residence, showcased opulent decorations and lavish furnishings.