Chalna

From Memory Alpha, the free Star Trek reference.

Chalna is the homeworld of the anarchistic Chalnoth race.

While commanding the USS Stargazer in 2354, Captain Jean-Luc Picard visited Chalna. He recalled his visit there to Esoqq when they were imprisoned together twelve years later. (TNG: "Allegiance")

Chalna also appeared in the starchart Data and Picard were studying in stellar cartography in 2371. (Star Trek Generations)