What does Cuiavia mean in Latin?

Cuiavia, a proper noun, means “Kuyavia (a historical region of Poland)”.

What is the genitive of Cuiavia?

The genitive singular is Cuiaviae. Cuiavia is feminine, first declension.

proper noun · femininefirst declension

Cuiavia f sg (genitive Cuiaviae)

Medieval LatinfemininesingularKuyavia (a historical region of Poland)
Item villae archiepiscopales per Cuiaviam, Chelm, Konare, Bachora, Poddambia […]Hasselbach, K. F. W.; Kosegarten, J. G. L. (1862), Codex Pomeraniae diplomaticus, volume 1, Greifswald: C. A. Koch, page 30, lines 18–19

What does Cuiavia mean in Latin?: Cuiavia, a proper noun, means “Kuyavia (a historical region of Poland)”.
What is the genitive of Cuiavia?: The genitive singular is Cuiaviae. Cuiavia is feminine, first declension.