Could it possible be from Leitesuliaira?
Here's link for their contest winners. It just list winners not the prizes they won. I know I enter for lots of different kitchen things there. http://leitesculinaria.com/2013-winners
I entered a sweeps like that and the prize was a red le creuset dutch oven.
That could be the one you won, but I cannot remember what sweeps it was.
Possibly Woman's Day??
Congrats! That's a home run. There have been quite a few sweeps with Le Creuset prizes. Those cookware items are on my bucket list. Enjoy and best wishes for many more great wins.