Is real surname of Moiraine a big spoiler?

Please, no further spoilers. I've just started to read the book (about 20%). It's a treat, and I am having a blast! But I have not the best imagination, and wanted to find some illustrations. When I've googled her name, Google just dropped her surname on me with the result on Wiki. They say it will be revealed much further in books. I will be extra cautious from now on. But am I robbed myself?