Vestrona is the continent containing Gildenor, Mystanyl and Altarema. Hundreds of years ago the Remice Empire occupied most of it and before that wild barbarians of various tribes roamed its forests, plains and mountains.
To the west of Vestrona is the Panteonic Ocean, to the east, the Vestronic Ocean and beyond that, the continent of Bian. Southeast of Vestrona is the Miranyl Sea and south of that, Obstera, the southern continent.
In our world, the best correspondence to Vestrona is a slightly waterlogged North America.