I've been making maps but I somehow forgot to share them with everyone.
Let's go back to Book Three: Leonis:
Book Three contains two time periods. The first part is set about 620 years after the exodus from Kobol. The initial settlers of Leonis regressed into an agrarian society and their language became something akin to Gaulish. (Many of the smaller towns on the map come from an ancient map I found of Gaul.) The second half of the book is set 150 years later and the language has evolved into "Old French" (aka Anglo-Norman).
As for the structure of the world, the book Beyond Caprica states that Leonis has only two continents: one above the equator and the other below. It also mentions that there are several large north-south rivers and that the capital (at the time of the fall of the Colonies) is Luminere, which is obviously the name of the city Lomere several centuries later.
On to Book Four: Virgon:
Cenric said, "There is no need to change what has worked well before. Makau, introduce us."
The translator sighed and stepped toward the older man who wore brightly colored skins and a metallic necklace. "This is the Duke of Sagittarius, Lord Cenric. He has come to claim your lands in the name of the ruler of Virgo, Queen Beverley."
The chief raised up and angry chattering rustled through the crowd. "He cannot do this," he said in their language.
The duke ignored him and said to Makau, "Ask him what this place is."
The young man asked, "What is this place?"
Defiant, the chief squared his shoulders and raised his jaw. "Tawa."
"'Tawa?'" the lord asked. "Does that have a meaning?"
Makau translated, "'Mine.'"
"Oh, a mine," Cenric said. He looked around and smiled. "Very attractive. I believe we shall establish ourselves here. Permanently."