Ctesylla
A beautiful maiden of the island of Cos, of whom and Hermochares Antoninus Liberalis (Met. 1) relates nearly the same story which other writers relate of Cydippe and Acontius. Buttmann thinks that Ctesylla was originally an attribute of some ancient national divinity at Ceos—Aphrodite Ctesylla was worshipped there who was believed to have had some love affair with a mortal.
From Smith's Dictionary of Greek and Roman Biography and Mythology