Mythical/Fictional Places: Movies, Television, Music, Comic Books, etc.: Fraggle Rock
King Rupert the Second is a modified version of King Goshposh, as seen in The Frog Prince. The puppet was recycled as the titular King in "The King's Breakfast" sketch from The Muppet Show episode 121.
King Rupert the Second and Featherstone
Photo of Fraggle Rock by