The extraordinary details of this dramatic struggle will be found elsewhere (see FREDERICK III., king of Denmark, and Charles X., king of Sweden); suffice it to say that by the peace of Roskilde (February 26, 1658), Denmark consented to cede the three Scanian provinces, the island of Bornholm and the Norwegian provinces of Baahus and Trondhjem; to renounce all anti-Swedish alliances and to exempt all Swedish [[Viii.