The Rusylli were a nomadic, tribal people with no fixed-boundary country associated.
They lived in house-wagons that could be moved by oxen and horses. They spoke their own language, also called Rusylli. They believed that the Bastard was a god, not a demon, similar to the Quintarians. However, they were not members of that church and had significant theological differences with the Quintarian church dominant in neighboring countries.
Behind the scenes
The location for the Rusylli roughly corresponds to Hungary and Romania in real-life geography.