Alright, names are a bit shit and variable but here's what I've got, simplified.
In Signalia/Noilich the indigenous peoples are the Horbs, Sigs, Dours, Mauri, Nonumbrians, Neuastrians and Cotans. There might also be proto-Dours who were there before them, but they are a sliver of an idea right now.
Helthargi start settling the Grefnian coastline founding several cities inc. Thelmachy.
Helxian colonisation of the Noilich begins with the conquest of the Mauri. After that they defeat the kingdom of Nonumbria and the Neuastrian cities as well and bring them under the yoke, founding the kingdom of Haelich. Colony settlements are also planted in Signus and Horbia.
The Helthargi Empire absorbs its daughter-cities into the the fold and begins the conquest of the landmass. The Haelichi conquer Cotia and begin beating back the Sigs.
The Helthargi drive the Helxians from Horbia and set up the vice-kingdom of Horbador under a governor.
Eventually Helthagor and Haelich meet in the middle. Much war ensues until the Helthargi Empire collapses and Haelich retreats. Both lose most of their colonies, and Haelich is checked by a newly independent Signus.
Dourdale is a land of shattered duchies and lordships, Grefnia is an independent kingdom while the Horbish remnant kingdom dubbed North Grefnia hangs on. The Pyfer/Pyfar Sigs rule a collection of states, and the Kon-somethings form the rich kingdom of Konos. The kingdom of Horbador gains independence as a mountainous Helthargi-Horbish mix.
After some time Setro and his not-Gauls arrive and conquer all of Dourdale as well as North Grefnia and some Sig lands, uniting it into the kingdom of Setronia, which then splinters again after his idiot son wastes all his resources in a long failed invasion of Horbador.
Signus eventually gets into gear and beats back Haelich. The kingdom of Pyferia forms. Grefnia conquers North Grefnia. Thelmachy becomes a powerful grand duchy.
Signus finally conquers Haelich. (cont.)