Nouns ending in -ance are feminine.
The suffix forms abstract nouns, often from verbs.
Is renaissance masculine or feminine?
larenaissance
The rule behind it
100% of -ance nouns are feminine
In context
L'époque médiévale fit place à la Renaissance.
The Medieval Era gave way to the Renaissance.
Marc a donné une conférence sur la Renaissance.
Mark gave a talk on the Renaissance.
La mort de son mari fut sa renaissance.
The death of her husband was her rebirth.