A chilling Irish legend tells of Petticoat Loose, a formidable woman whose restless spirit is said to haunt Bay Lough to this day, writes JOHN AMBROSE MARTIN
Deep in the Knockmealdown Mountains of County Tipperary, where the road twists through the Vee and the heather turns the hills purple, lies a lake that few locals will cross after dark.
Its name is Bay Lough. According to generations of Irish storytellers, something ancient and angry sleeps beneath its waters, something that was once a living woman known as Petticoat Loose.
This is not a modern tale. The story is rooted in real 19th-century accounts and was carefully recorded in the Irish Folklore Commission’s Schools Collection, gathered at Clogheen Convent in the 1930s and 1940s.
Even now it is told in pubs around Clogheen, Cahir, and Dungarvan, preserved exactly as the old sources kept it.
Clogheen, the quiet mountain village at the heart of the legend, is said to be the place where the parish priest confronted her for the final time.
The Woman Who Broke Every Rule
Her real name was probably Mary or Brigid; some say Mary Hannigan.
She stood six feet tall and possessed the strength of any man.
She worked in the fields, wrestled the local lads and beat them, once killed a bull with a single punch, and according to witnesses, struck a farmhand dead with his own spade.
Anyone who saw it was warned to stay silent or face the same fate.
She was a heavy drinker and a wild dancer.
Her nickname, Petticoat Loose, was born during a night in the Quills pub in Dungarvan, when her petticoat flew open or came undone as she spun across the floor.
The entire crowd saw it, and the name followed her for the rest of her life.
She married briefly, some say to a hedge schoolmaster, but one night, while she was milking cattle, a terrible cry came from the house.
Her husband was never seen again.
When the servants tried to investigate, she told them calmly not to bother.
Her death came in the same pub where the nickname began.
She entered a drinking challenge, downed half a gallon of beer, some say more, and collapsed with the bottle still in her hand.
Terrified of her even in death, the men buried her that night, without a priest, in unconsecrated ground at a crossroads.
Seven Years Later, She Returned
Exactly seven years after she died, the ghost appeared.
She was tall, floating, glowing with a strange, sickly light.
She wore old-fashioned clothing.
Her eyes were hollow, and her stare could stop a man’s heart.
She haunted lonely roads, crossroads, pubs, and dance halls across Waterford, Cork, and Tipperary.
She offered lifts to travellers, and horses were said to sweat and struggle under her impossible weight.
Sometimes she appeared as a creature with the body of a horse and the head of a woman.
She challenged men to dances and terrified anyone who dared to accept.
One detail appears in every telling: she never harmed anyone named John.
Variations of the Story
The story reaches its end in Clogheen.
According to the Duchas accounts collected from the schoolchildren, Petticoat Loose lived in a cave near Bay Lough.
The parish priest, Father Shanahan, rode out to confront her.
At first she confessed to small sins, watering down milk, beating her parents.
Then she admitted the worst: killing an unbaptised child.
A man named John stabbed her with a black-handled knife.
She laughed and told him to draw and stick again, but he refused.
She fell dead at the horse’s feet.
Other versions say a priest used holy water and his stole to trap her.
She raged and threatened to burn ships and drown the people if she were sent away, but he banished her to Bay Lough, which is sometimes called bottomless, a place where Saint Patrick was once said to have imprisoned monsters.
Her punishment varies by region.
Some say she must empty the lake with a thimble.
Others say she must plait ropes made of sand, or lie head downward at the bottom of the lake.
Some stories say she spent seven years in the ocean before returning to Bay Lough for her final imprisonment.
Locals still say she moves beneath the surface.
Swimmers avoid the centre of the lake.
Some claim she has been heard whispering, asking, “When will the day of judgment come.”
The Warning Every Child Once Heard
For decades in the south of Ireland, parents used her name as a warning.
“Behave yourself or Petticoat Loose will get you.”
She survives as both a monster and a symbol of raw, unstoppable strength in a time when women were expected to be quiet and obedient.
Folklorists have documented many versions of her life, each with its own small variations, but the Tipperary heartland, Bay Lough and the Knockmealdowns, remains the heart of the legend.
Even today, visitors speak of an unnerving calm around the lake.
The mountains feel watchful.
The water looks black and bottomless.
So the next time you drive the Vee road after dark, keep your eyes on the lake.
And whatever you do, if a tall figure in old clothing steps into the road and asks you for a lift, politely refuse and keep moving.
