What's the noun for conqueress? Here's the word you're looking for.
conquest
Victory gained through combat; the subjugation of an enemy.
(figuratively, by extenstion) An act or instance of overcoming an obstacle.
That which is conquered; possession gained by force, physical or moral.
(feudal law) The acquiring of property by other means than by inheritance; acquisition.
(video game) A competitive mode found in first-person shooter games in which competing teams (usually two) attempt to take over pre-determined spawnpoints labeled by flags.
“The young chess prodigy was determined to become the conquistador of his generation, defeating every opponent and claiming victory in every tournament.”
“The conquistador succeeded in making allies of the Totonacs, who were hostile towards the Aztecs.”
“So the Spanish conquistador may have looked who took the place in the sixteenth century.”
“Yet, as with the army, the government had the greatest difficulty in controlling would-be conquistadores.”
“Their effectiveness, however, was limited by the opposition of the conquistadores.”
“In order to encourage social acceptance of such unions, Anglos claimed that elite Mexican women were the racially pure descendants of the Spanish conquistadores.”