or Dalmannsbori, a group of islands, nine in number, belonging to Asiatic Turkey, in the Sea of Marmora, near the entrance of the Bosphorus, from 10 to 12 miles S.E. of Constantinople. Their scenery is exceedingly beautiful; and they contain many villages, gardens, country seats, and convents. The largest of the group is Prinkipo, on which is a town of the same name. One of the most beautiful is Kalki, so called from its ancient copper mines. A steamer sails daily from Constantinople to the Princes' Islands, which attract many visitors by the beauty of their scenery and the amenity of their climate. Pop. of the group, 10,000.