The Torbet were a unique clan among the Daen Coentis, known for their adherence to Fois (sometimes equated to Este or Yavanna), a healing goddess normally revered only among the lowland Daen-folk of Gondor. When the Coentis turned to the worship of the Dark Lord Sauron, the priestesses of Fois refused to perform healings for any who openly participated in the new cult. It was at this time that the Sianwin emerged as a renegade sect of Torbet healers who defied Fois' priestesses, removing themselves to Hogo Tarosvan (a remote vale of the White Mountains) and continuing to provide their services to all of the clans.
The Torbet clan later fell apart, though a clan of the name "Taranberth" among the Dunmen claimed to be the rightful descendants and heirs of the ancient Torbet.