Riverville

From Tardis Wiki, the free Doctor Who reference

Riverville was the name of an Earth colony planet during the Earth Empire (between 26th and 30th century), located in the Folflower System in Mutter's Spiral.

It was under the monarchy that existed on Folflower.

Human dignitaries from this planet were buried on the cemetery planet, Mordane. (PROSE: The Graves of Mordane)