I appreciate that George -- almost certainly inadvertently -- left us a "certain point of view" out with Concordia. That the show called it a moon is erroneous. It may be smaller but it masses pretty much the same (probably denser due to the beskar deposits). It has the same gravity and atmospheric density. They're co-orbiting trojan planets. And Concordia sure looks and feels a lot like the EU Mandalore -- plus that being where all those who wouldn't sign on with the New Mandalorian pacifist worldview were exiled. It would not surprise me in the least if -- since both are planets and both occupy the same orbital position in the system -- the "True Mandalorians" on Concordia consider that world the real Mandalore.
We know nothing about the settlements on that world, but unless and until something disproves it, I maintain the capitol city was Kedalbe/Keldabe (the spelling changed over the years in the EU) and somewhere off to the North, up in the mountains, past an outpost town called Kirimorut, there is an enclave of hardliners even other Mandalorians think are a bit extreme -- family name of Skirata. They're in a Shroedingerian state of quasi-existence, and I choose to believe until I am forced to stop.
Eager to see if his question will be answered. 
