The Antlered Lion (смешанная)

Badly injured in the battle at Ashford, Robert Baratheon is forced to marry Cersei Lannister at Casterly Rock to secure the allegiance, and forces, of the Westerlands during the early stages of the rebellion, against the Targaryen rule. The ensuing pregnancy, and birth, of Harian Baratheon, will forever change the history of Westeros.
In another reality, Harry James Potter takes matters into his own hands. Desperately lonely and fed up of a broken, post-war world, he completes a sacrificial ritual to send him to a new world. His interference changes the direction of Westeros, and its fate, as the dark night closes in and yet another war threatens. His presence in Westeros will change history...and the people around him as he once again stands up as a hero to the world.
A life lived twice, for better or for worse, it matters not, for the price of cheating death is always a high price to pay.