Hafþór Julius Björnsson, the strongman famous for his role as Ser Gregor Clegane, aka “The Mountain” in Game of Thrones, reportedly broke a record that has stood for 1,000 years while winning the recent World’s Strongest Viking competition. The 6’9″ 400-pound athlete posted the following note on Instagram, explaining:

“The legend of the Icelander Orm Storulfsson says that he walked three steps with this MONSTER WOODEN LOG which weighs over 600kg’s/1320lbs! It took 50 mere mortals to help him placing it on his back! After he took his third step his back broke under the enormous pressure and he was never the same after that!

Well today my friends I made history!! As well as winning the title of The World’s Strongest Viking for the second time in a row I carried this MONSTER LOG 5 steps! My back held up fine!! As I’m on my way to my ultimate goal to win The World’s Strongest Man! NOTHING CAN STOP ME!! NOTHING CAN BREAK ME!!”

In lifting the log five steps, Thor carved himself a place in Viking folklore! Check out the footage: