Pope Leo XIII spoke primarily Italian, as he was Italian by birth. There is no detailed record indicating he spoke multiple languages fluently, unlike some modern popes. In contrast, the current Pope Leo XIV (Robert Francis Prevost) is known to speak multiple languages fluently, including English (his native language), Spanish, Italian, French, and Portuguese. He can also read Latin and German
. So, specifically for Pope Leo XIII, the information confirms he spoke Italian. For Pope Leo XIV, he speaks at least five languages and reads two more.
