Sunday, 19 March 2017
A Circus Of Hells shows us Irumclaw, Wayland and Talwin. Irumclaw is important for the defense of a Terran border against Merseia, Wayland will provide the wealth necessary to maintain Irumclaw and Talwin becomes a joint Terran-Merseian scientific base where secret negotiations can be held.
The Rebel World shows us Terra, Shalmu, Llynathawr, Aeneas and Dido and mentions Ifri:
Dominic Flandry's servant, Chives, is Shalmuan;
Catawrayannis on Llynathawr is the capital city of Sector Alpha Crucis of the Terran Empire;
Aeneas is the base of the McCormac Rebellion;
study of the tripartite Didonians is the reason why there was a scientific base, that became a colony, on Aeneas;
Ifri is Navy sector headquarters.
The Day Of Their Return, set entirely on Aeneas, introduces Aycharaych from Chereion, a planet that was an interstellar power and is now the spearhead of Merseian Intelligence.
So it seems to be impossible to find an unimportant planet.