Fans of the original George R.R Martin books will know this is Brandon Stark (Ned’s older brother).
The book sees Brandon storm into the city claiming that Prince Rhaegar had abducted Lyanna Stark.
He demanded the Prince fight him, and this wasn’t taken too well by the Mad King, as he summoned Lord Rickard Stark to answer for his son’s perceived crime of plotting to kill the prince.
Upon Lord Rickard’s arrival, Aerys II had both men sentenced to death in one of the cruelest ways possible.
Brandon was tied to the floor with a rope around his neck and his sword just out of reach while Lord Rickard was dressed in full armour and strung up in the air above a burning fire.