Forged by Aegon I Targaryen from the swords of his enemies, the Iron Throne is the seat of the king of the Seven Kingdoms.
But according to eagle-eyed redditor, NoMoreHodoring, one of the swords in question is Glamdring - Gandalf's sword from Lord Of The Rings.
Here's the sword being inspected in The Hobbit: An Unexpected Journey.
It seems quite likely that the sword just to the right of Gandalf's is the sword Robin uses in Robin Hood: Prince Of Thieves.
In 2012 the show was forced to apologise after it showed George W. Bush's head on a spike.