Dionysius I of Syracuse vs Dionysius

Dionysius I of Syracuse and Dionysius both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dionysius I of Syracuse	Yes	No	No	No
Dionysius	Yes	No	No	No

As nouns, Dionysius I of Syracuse and Dionysius are synonyms defined as:

Dionysius I of Syracuse and Dionysius: the tyrant of Syracuse who fought the Carthaginians (430-367 BC)

Other synonyms of Dionysius I of Syracuse include Dionysius the Elder.

Dionysius I of Syracuse (noun)	Dionysius (noun)
the tyrant of Syracuse who fought the Carthaginians (430-367 BC)	the tyrant of Syracuse who fought the Carthaginians (430-367 BC)