[EVERYTHING] When was the last time we saw...

...the Iron Throne? I saw someone point out a while back that it hasn't been seen for quite some time in the show, which is sort of representative of the power vacuum in Westeros right now. Unless I'm forgetting something, the throne hasn't made an appearance in season 6 so far. Can anyone remember the last episode of the series with a scene that took place in the throne room?