The great isle of Borsholm lies on the coast of Otticia. It has the shape of a great needle, a feature remarked upon as being peculiar. Legend has it that its connection to land was broken during a battle between titan spirits, though many other tales exist which try to account for the island's peculiarities.
Historically, it has been home to many petty kingdoms, which were eventually united into three of the Twelve Houses.
Borsholm remains culturally distinct from the rest of Otticia. Immigration from Samar in ages past has helped to define the southern part of the isle in terms of tradition and architecture.