"A Royal Pain in the Castle" is the second segment of the final episode of The 7D. It premiered on November 5, 2016 alongside "A Sneeze in Time", and is the second segment of the twentieth episode in the second season.
Grumpy is appointed substitute King for a Day and must contend with a saber-rattling Gnome King during a peace summit.
- Originally this episode was going to premiere on October 29, but the schedule was changed with this episode moved to an unknown date.
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