The Bean Sí

Key takeaways: the bean sí (banshee) announces death, she never causes it; the genuine tradition describes a small old woman whose keen is mournful, not a screaming attacker; she follows the old Gaelic bloodlines, even across the Atlantic; her roots reach back through the human keening women to the medieval death-goddess Badb; and tradition says to leave her, and her comb, well alone.

What is the bean sí?

The bean sí, anglicised “banshee”, is the female supernatural death-herald of Irish tradition. She is not the cause of death but its announcer: a being of the Aos Sí who wails or keens before the death of a member of one of the old Irish families. Her name is transparent: Old Irish ben síde, Modern Irish bean sí, “woman of the síd”, a compound of bean (woman) and the genitive of síd, the word for the ancient mounds understood in Irish tradition as the dwelling places of the Tuatha Dé Danann. The eDIL records ben síde as a compound noun denoting a supernatural woman of the fairy world, attested from Old Irish texts onward.

The core tradition, documented by Patricia Lysaght in The Banshee (1986), is consistent across Ireland and remarkably stable: the bean sí is attached to a specific family of Gaelic descent, most characteristically those with surnames beginning Ó or Mac, and her cry (gol) is heard before, not after, the death. She does not cause death. She mourns or forewarns of it. In some accounts she is perceived as an ancestor of the family; in others she is simply of the Otherworld, bound to the bloodline by an ancient tie.

Where does the banshee tradition come from?

Any account must separate two distinct but related layers.

The medieval literary layer centres on the Badb, one of the three manifestations of the Mórrígan, who appears before battles as a death-messenger, often as a hag or crow. In Togail Bruidne Da Choca (ed. and trans. Whitley Stokes, Revue Celtique 21, 1900), the Badb appears as a “red woman” washing a chariot at a ford; when her hand lowers, the river runs red with gore; when raised, it runs dry. Chanting on one foot with one eye closed, she declares “I wash the harness of a king who will perish”, a direct prophecy of Cormac Conloinges’s death. She appears again at the hostel as a “bigmouthed, swarthy, swift, sooty woman, lame and squinting,” and prophesies the massacre. In Togail Bruidne Dá Derga (Stokes, Revue Celtique 22, 1901), the Badb/Cailb appears at the hostel door, her names including Badb, Nemain, and a long catalogue of destructive personifications, and delivers doom to Conaire Mór. These are the washer at the ford and the hag of doom: supernatural females whose presence signals death. [Where the layers differ: the medieval battle-goddess is explicitly a death-cause or death-participant as well as a herald; the modern bean sí is emphatically only a herald. The connection is real but the two should not be collapsed into one.]

Also in this layer: Aoibheall (Aibell, Aibheall), guardian spirit of the Dál gCais and queen of the Aos Sí of Thomond, seated at Craig Liath (Craglea, near Killaloe, Co. Clare). The Cogadh Gaedhel re Gallaibh (ed. Todd, 1867) records her appearance the night before the Battle of Clontarf (1014), foretelling Brian Boru’s death. Lady Gregory, in Visions and Beliefs, gives the tradition in its popular form: Aoibheall came to Brian and told him he would not leave the battle alive, and he went knowingly to his death. Aoibheall’s golden harp, whose music presaged death, adds a distinctive sound-omen cluster to her tradition, related to the gol of the bean sí. [A dating caution: the Cogadh Gaedhel re Gallaibh is a twelfth-century text composed at least a century after Clontarf; the Aibell episode is a later legendary accretion, not a contemporary record. The essential structure, an Aos Sí woman appearing before a great death to forewarn, is consistent with the wider bean sí tradition.]

The modern folklore layer is the bean sí of the Schools’ Collection, Lysaght’s fieldwork, Lady Gregory, and Lady Wilde. Here the battlefield scale has faded; the figure is quieter and more intimate, attached to specific families, heard outside the window at night. Her cry (gol) is described by informants as “a long lonesome sound,” “the most mournful thing ever you heard,” a keening close to the human caoineadh rather than any cinematic scream.

How is the banshee connected to Ireland’s keening women?

The link between the supernatural bean sí and the human bean chaointe (keening woman) is fundamental. Caoineadh, from caoin, to weep, was the structured vocal lament performed by women at Irish wakes, combining verse praise of the dead, a refrain (gol), and raw communal grief-expression. Keening is attested in Irish sources from the seventh and eighth centuries. As Seán Ó Súilleabháin noted: “Without the caoineadh, the wake was not complete.” The keening women were skilled professionals, respected, older, liminal, who led communities at the moment of transition. The practice persisted in Connacht and Mayo into the early twentieth century before Church suppression and social modernisation ended it.

Yeats stated the connection directly in Fairy and Folk Tales (1888): “The keen [caoine], the funeral cry of the peasantry, is said to be an imitation of her cry.” Lysaght (1986) found that in some regions the bean sí was understood as a former keening woman who had died and continued her office from the Otherworld. Both figures, human bean chaointe and supernatural bean sí, stand at the threshold: older women, liminal, permitted to cross social norms in service of the dead.

What does the banshee look like?

The bean sí’s appearance varies by region. From Connacht accounts (Lady Gregory, Visions and Beliefs; Lysaght, 1986): she is typically a small, old woman; long white or grey hair, sometimes golden in older accounts; wearing a grey, black, or (in several Galway accounts) red cloak or petticoat; not visible below the feet. She cries to herself, absorbed in her mourning, not threatening the observer. She is sometimes seen at a river or stream, washing, a direct echo of the washer-at-the-ford. Lady Gregory records: “I was walking the road and I heard a great crying and keening beside me, a woman that was keening, and she conveyed me three miles of the road … I looked down and saw a little woman, very broad and broad faced, about the bigness of the seat of that table, and a cloak about her.” Another Galway account: “The Banshee is all I ever saw myself … there she was and gave me a slap on the jaw, and she just like a countrywoman with a red petticoat.” [Where versions conflict: Victorian literary accounts describe a tall, beautiful young woman in white; this reflects romantic elaboration, not the dominant Connacht and Irish popular evidence, which consistently gives an old woman.]

Why is the banshee’s comb never to be touched?

The comb is one of the most persistent items of bean sí lore. She is seen combing her long white or golden hair; if startled, she may leave the comb behind. The prohibition is consistent: never pick up a comb found on the ground, it may belong to the bean sí, and she will come demanding it back, with consequences for the household. The Dúchas An Tobar account: a man coming home finds a woman on a stile combing her hair; when she sees him, she vanishes. Schools’ Collection accounts on duchas.ie record consequences of taking the comb: seven pigs found dead and all hens’ feathers stripped off after two men took it [specific Dúchas entry provenance to be confirmed]. Lysaght interprets the comb-motif as linked to the washer-at-ford figure, to the custom of dishevelled hair among keening women, and to the universal Irish caution against interfering with Otherworld objects.

Which families does the banshee follow?

The attachment to old Gaelic families with Ó or Mac surnames is among the most consistent elements of the tradition. The Dúchas An Tobar account states: “It is said in Ireland that the Banshee follows the O’s and the Mac’s.” Lady Gregory’s Galway informants named specific families: the Hyneses, the Fahys, the O’Briens, the Kearns, the Sionnacs, the Fox family of Moneen. The Galway Dúchas account (Baile an Doire/Brackloon) records the bean-sidhe crying at the family’s fields while a son lay ill in America, her foreknowledge transcends distance, a key element suggesting she is attached to the bloodline rather than the place.

Regional names map the tradition’s depth. Bean chaointe (keening woman) is used in Tipperary and parts of Mayo, explicitly conflating the supernatural and human mourners. Badhbh (pronounced “bive” or “bow”), used in Wexford, Carlow, Wicklow, and parts of Connacht including North Mayo, confirmed by Lysaght in her 1986 RTÉ interview (“in North Mayo as well she’s called Biv”), directly recalls the medieval war-goddess Badb. Bibe (Waterford), Bow (south Leinster) are further Badb derivatives. This regional variation is historically significant: the south-east retained the older goddess-name while the west adopted the softer bean sí terminology, suggesting a long layering of the tradition.

Where in the west of Ireland is the banshee attested?

Lady Gregory’s Visions and Beliefs (1920) is the single richest Connacht collection. Informants describe the banshee at Esserkelly castle, at Ballylee river (Yeats’s tower), crying before a Murphy boy’s death at Kinvara, and heard at Aughanish. These are living accounts from the 1890s–1900s. The Dúchas Schools’ Collection Connacht accounts, such as Brackloon, Co. Galway (duchas.ie/en/cbes/4562124/4561539/4571912), document the bean sí appearing at rivers and following families across the Atlantic. In Mayo the tradition is attested through its names: Lysaght’s 1986 interview confirms that the figure is called badhbh (“Biv”) in North Mayo and bean chaointe in parts of the county. [Mayo-specific Schools’ Collection page references to be confirmed.]

Is the banshee evil?

No. Lysaght (1986) found accounts from the 1920s through the 1970s essentially unchanged in structure, suggesting the bean sí tradition fulfils a genuine cultural need. She argues the figure was originally a patron goddess of the family and land; in the Christian period demoted to a fairy being, but her core function, caring for the family’s dead, warning of approaching death, accompanying the soul, persisted. Her cry is not a curse but a recognition: it says this death matters, this family is known and mourned by a power older than themselves. The Hollywood banshee, screaming, attacking, malevolent, is a modern distortion. The genuine tradition insists she is not hostile and not to be interfered with. As Lysaght put it: “You let her alone, she’ll let you alone.”