winter's sun
[http://archiveofourown.org/series/59378] - - public:opalsong
In which Robert Baratheon weds Catelyn Tully on the eve of rebellion while Cersei Lannister, the rising sun of Casterly Rock, is sent to the far North to marry Ned Stark and become Lady of Winterfell. In consequence, the fates of these two women, the people they love, and the game of thrones are changed forever. But winter is coming, as it always will.