Byblis and Caunus.
Daughter and son of Miletus and great-grandchildren of the Cretan king Minos. Byblis was passionately attracted to her twin brother, Caunus; when she confessed her love to him, he fled in horror to Lycia. Byblis went in search of him, wandering through many lands, until at last she was turned by nymphs into a fountain of her own tears. In another account, Caunus returned Byblis’s love but then left her, whereupon she hanged herself with her girdle.
The Phoenician city of Byblos (Jubayl) was said to have been named for Byblis. This minor mythological tale is more commonly a theme of literature and the stage than of the visual arts.

Classical Sources. Ovid, Metamorphoses 9.451-665. Hyginus, Fabulae 243.