Mermaids and mermen are mythical creatures with origins outside the classical Mediterranean civilisations. Conventionally, their upper body is human, while below the waist they have the form of a fish. Mermaids seem invariably young, beautiful and buxom, and are most frequently encountered by fishermen and those who go down to the sea. In the Middle Ages they became confounded with the sirens of Greek and Roman myth, who were part human and part bird.

John William Waterhouse’s diploma study for the Royal Academy, painted in 1900, shows a conventional image of A Mermaid, seen combing her long tresses on the shore.

Despite their separate origin, mermaids have been depicted in accounts of some classical myths, perpetuating medieval confusion.

Gustave Moreau’s Venus Rising from the Sea from 1866 shows the goddess as she has just been born from the sea, and sits on a coastal rock, her arms outstretched in an almost messianic pose. On the left, a mermaid attendant holds up half an oyster shell with a single large pearl glinting in it. On the right, a merman proffers her a tree of bright pink coral, and cradles a large conch shell.

Ary Renan’s Charybdis and Scylla (1894) is an imaginative painting of one of the dangers to mariners in the Strait of Messina, between Sicily and the Italian mainland. Scylla was said to be a six-headed sea monster, but was actually a rock shoal, and Charybdis was a whirlpool. Renan shows both together, the whirlpool with its mountainous standing waves at the left, and the rocks at the right, with the form of a beautiful mermaid embedded in them.

As the First World War was ending, Franz von Stuck returned to his favourite faun motif in A Faun and a Mermaid (1918). This has survived in two almost identical versions, the other now being in the Alte Nationalgalerie in Berlin. His version of a mermaid is a maritime equivalent of a faun, with separate scaly legs rather than the more conventional single fish tail. She grasps the faun’s horns and laughs with joy as the faun gives her a piggy-back out of the sea.

Perhaps the earliest painting of a mermaid in European art is in a Christian religious painting by Lucas Cranach the Elder, from 1518-20.

Cranach’s Saint Christopher shows the saint with his back and legs flexed as he bears the infant Christ on his left shoulder. In the foreground is an unusual putto-mermaid with a long coiled fish tail.

Mermaids feature in folktales from many of the traditions of Europe, where they’re known by local names such as havfrue in Denmark.

John Reinhard Weguelin’s watercolour of The Mermaid of Zennor (1900) tells the legend of a mermaid living in a cove near Zennor in Cornwall. This scene brings her together with Matthew Trewhella, a local chorister, whose voice she had fallen in love with. The legend tells that the couple went to live in the sea, and that his voice can still be heard in the cove.

Peter Nicolai Arbo’s Liden Gunver and the Merman (1874-1880) is drawn from an opera The Fishers, by Johannes Ewald and Johann Hartmann, first performed in Copenhagen in 1780. The young woman Liden Gunver, on the right, is taken to sea by the alluring but deceptive merman on the left.

Hans Thoma’s Three Mermaids (1879) lack fishtails as they frolic raucously with fish under the light of the moon.

Gustav Klimt’s Mermaids (Silverfish) (c 1899) appear to be tadpole-like creatures with smiling, womanly faces.

The little we know of Sappho is, like the little remaining of her poetry, scant and fragmentary. She was arguably the greatest classical Greek lyrical poet, a lesbian of renown, and was alleged to have thrown herself from a cliff when a male lover left her.

Dearth of information about her, and its apparent inconsistency, hasn’t stopped a wealth of speculative writing, and her appearance in a great many paintings, few of which are consistent with her sexuality. Here I’ll consider one text, the fictional letter written for her by Ovid in his Heroines, and a selection of those paintings.

Born around 630 BCE into a wealthy family on the Greek island of Lesbos, legend has associated her romantically with two men: a contemporary poet, Alcaeus, and Phaon a local ferryman. Her own name and that of her island have been associated with her sexuality since the late nineteenth century, and Ovid makes it clear that her love of women was well-known among Romans in his time.

Since around 300 BCE, there has been a legend that tells of her love for Phaon the ferryman, who plied the waters between Lesbos and the Anatolian mainland. Almost certainly illiterate and hardly a good audience for Sappho’s verse, Phaon’s redeeming feature was apparently the gift of great physical beauty. He was given this one day when he carried Venus/Aphrodite in his boat; the goddess was travelling in disguise as an old woman, Phaon didn’t charge her for the crossing, so she returned the favour by transforming his physical appearance.

Ovid’s description of Sappho’s affair with Phaon leaves little to the imagination, even down to their lovemaking.

Among those who seem to have accepted the truth of this legend was Jacques-Louis David, in this painting of Sappho and Phaon from 1809. David was necessarily not as explicit as Ovid, showing the couple fawning over one another with their recently occupied bed behind them, and a post-orgasmic gaze on Sappho’s face. In case you haven’t got the message, Cupid holds her lyre, and two doves peck affectionately on the window sill.

A little deeper into Victorian prudery, Lawrence Alma-Tadema’s Sappho (1881) shows Sappho resting on a lectern and staring intently at Alcaeus, who is playing a lyre. She’s supported by her ‘school of girls’, one of whom rests her arm on Sappho’s back. The artist’s hints at a lesbian interpretation are necessarily subtle: the marble benches bear the names of some of her female lovers.

Yet nearly twenty years earlier, Simeon Solomon was far more open in his watercolour of Sappho and Erinna in a Garden at Mytilene (1864). Sappho is shown on the right, her dark hair and complexion in accordance with Ovid’s description. Although Erinna, another woman poet of the time, might have joined Sappho in her community of young women on Lesbos, she is now thought to have lived on the island of Telos, and slightly later.

Solomon’s career was all but destroyed by his own sexuality: a brave pioneer of homosexual themes in his painting, he was arrested for homosexual offences in 1873, and was shunned thereafter.

Ovid’s fictional letter from Sappho to Phaon was written after the legendary ferryman moved to Sicily. It’s unusual among his Heroines for depicting a real, historical figure, albeit in this legendary story.

The letter can be read in at least two ways. It could, in spite of its multiple clear references to Sappho’s lesbian lifestyle, be just another male denial of female homosexuality. This seems unlikely for many reasons, not least of which is the gross implausibility of everything about the letter. This has led some to doubt that Ovid even wrote it, an issue that remains hotly debated. Ovid shows profound and progressive insights into human sexuality; if this letter was written by him, it comes over as an excellent debunking of the legend of Phaon, and a witty and irreverent commentary on the life and loves of another great poet.

The story of Sappho and Phaon has, however, stuck. Its climax, when the broken-hearted Sappho throws herself from the top of the Leucadian Cliff, became an extremely popular motif in nineteenth century painting.

Pierre-Narcisse Guérin paints a portrait of Sappho looking in sad reflection, her head resting on a symbolic lyre. There is little to indicate that she is on the top of cliffs, apart from the title, and no narrative references.

Théodore Chassériau’s watercolour of Sappho Leaping into the Sea from the Leucadian Promontory (c 1840) shows her clutching her lyre, her arms braced across her chest, as she steps off the edge of the cliff.

Sappho’s suicide became something of an obsession for Gustave Moreau, who painted her repeatedly between about 1870 and 1893.

Moreau’s Death of Sappho was probably in progress when the Franco-Prussian War broke out, and wasn’t completed until after order was restored to Paris the following year. It shows the poet moments after she had thrown herself from the cliff, her body lying in peaceful repose, her lyre beside her, and a seagull in mourning. The contrast between the elaborate decoration of her body, clothing, and lyre and the stark rocks and gloomy sea and sky couldn’t be greater.

Sappho (1871-72) was his second painting of her, this time a richly-detailed watercolour. Here she is swooning over her lover shortly before flinging herself to her doom. Her lyre is slung over her shoulder, and to emphasise her status as a great poet, Apollo’s gryphon is shown on a column behind her. Her elaborately decorated clothing and pose were taken from a Japanese woodcut, Genji taking the air in summer on the Sumida by Utagawa Kunisada (Toyokuni III), that Moreau had bought in Paris.

Moreau returned to his consideration of Sappho’s suicide in this watercolour of Sappho at the Leucadian Cliff (c 1885), showing her clinging to her lyre as she falls to her death on the rocks below. This is lit by one of Moreau’s saturnine suns.

In Moreau’s late oil painting of Sappho from about 1893, she is seen stepping off the cliff, with the sun setting behind her.

During this period, those influenced by Moreau also painted the poet. Jules-Élie Delaunay’s undated Sappho Embracing her Lyre shows her at the top of the cliff holding her lyre close, as if it were her lover.

Ary Renan painted Sappho at least twice. The first from 1893 appears influenced by Moreau’s paintings. Sappho reclines underwater amid a fantastic and deep layer of vegetation, her lyre some distance from her head, at the right edge.

Renan’s later painting shows her just as she has stepped off the top of the cliff, and is about to plunge to her death. She holds her lyre aloft in her left hand, as a surprised seagull flies past.

Ovid’s letter, written two millennia ago, shows wittily how absurd the legend of Sappho and Phaon is. Yet so many artists since have continued to depict it in paint, perpetuating its naïve denial.