However, several suffixes are commonly used to denote something related to an empire, including:
* -ial: imperial, imperialistic
* -an: Elizabethan, Roman
* -ic: Napoleonic
* -esque: Byzantine-esque
* -archy: monarchy (although not always specifically tied to empires, it can be)
Ultimately, the best suffix to use depends on the specific context and what you're trying to convey.