Change Google Map iframe language

Question

I have this map with an iframe on my site:

http://ecotourism.afrika-praktikum.de/zanzibarwebsite/in-kenya/elewana-elephant-pepper-camp-with-game-package/

The controls on the map appear on Spanish (for example: "ampliar mapa")

How can I change the language?

Please no API, I just want to use the iframe.

Answer 1

There is a list of languages in preferable order in the end of an iFrame url: for example, "!1sru!2sen" would mean use russian language, or english language.