WATCH: The Game of Thrones cast competes in our Westeros map quiz

To rule the Seven Kingdoms, you should probably be able to identify them.

So when we caught up with the stars of Game of Thrones at San Diego Comic-Con this weekend, we challenged them to a geography bee of Westeros. And like Jon Snow, they know (nearly) nothing … including what the Dorne stronghold of Sunspear even is.

Watch Jacob Anderson, Conleth Hill, Liam Cunningham, Isaac Hempstead Wright, Gwendoline Christie, Nathalie Emmanuel, John Bradley, Ramin Djawadi, Sophie Turner and Alfie Allen compete below. Spoiler alert: Christie brings a Brienne-like intensity to tight race.

Hear interviews with the cast on Entertainment Weekly Radio (Ch. 105), and watch Game of Thrones on Sundays at 9 pm ET on HBO.