Hero and Leander is a Byzantine myth

Mythology

The term mythology can refer either to the study of myths, or to a body or collection of myths. As examples, comparative mythology is the study of connections between myths from different cultures, whereas Greek mythology is the body of myths from ancient Greece...

, relating the story of Hērō and like "hero" in English), a priestess of Aphrodite

Aphrodite

Aphrodite is the Greek goddess of love, beauty, pleasure, and procreation.Her Roman equivalent is the goddess .Historically, her cult in Greece was imported from, or influenced by, the cult of Astarte in Phoenicia....

 who dwelt in a tower in Sestos

Sestos

200px|200px|thumb|The Ancient Map of Gallipoli PeninsulaSestos was an ancient Greek town of the Thracian Chersonese, the modern Gallipoli peninsula in European Turkey. Situated on the Hellespont opposite Abydos, it was the home of Hero in the legend of Hero and Leander, where according to legend...

 on the European side of the Dardanelles, and Leander , a young man from Abydos

Abydos, Hellespont

For other uses, see Abydos Abydos , an ancient city of Mysia, in Asia Minor, situated at Nara Burnu or Nagara Point on the best harbor on the Asiatic shore of the Hellespont. Across Abydos lies Sestus on the European side marking the shortest point in the Dardanelles, scarcely a mile broad...

 on the opposite side of the strait. Leander fell in love with Hero and would swim every night across the Hellespont to be with her. Hero would light a lamp at the top of her tower to guide his way.

Succumbing to Leander's soft words, and to his argument that Aphrodite, as goddess of love, would scorn the worship of a virgin, Hero allowed him to make love to her.