Members of the royal family need a strong work ethic and the ability to listen to people from all different walks of life. The Queen and members of her family find themselves at events with people from around the world, constantly surrounded by different languages. So most of The Firm do their best to learn different languages, with Prince William being able to speak an impressive seven.
He can reportedly hold a conversation in French, German, Welsh, Gaelic, Spanish and can even converse in Swahili - having reportedly taught himself the language during his time at university.
And it's possible that William improved his Spanish skills during his gap-year which he spent in Chile on the Raleigh International scheme building houses and helping communities.