The beheading of Saint Dymphna by Godfried Maes
|The Lily of Éire|
|Venerated in||Roman Catholic Church, Eastern Orthodox Church|
|Feast||15 May (30 May in the 2004 Martyrologium Romanum)|
|Attributes||crown, sword, lily, lamp|
|Patronage||runaways, mental disorders, neurological disorders, survivors of incest, survivors of sexual assault, depression, anxiety|
The author expressly stated that his work was based upon a long-standing oral tradition as well as a persuasive history of miraculous healings of the mentally ill.
St. Dymphna's name derives from the Irish damh (poet) and suffix -ait (little/feminine), therefore meaning "poetess." It is also spelled Dimpna, Dymphnart, Damnat, Damhnait or Dympna. and is pronounced // or // in English and [ˈd̪ˠəu.n̪ˠətʲ] in Irish.
Story of her life and death
When St. Dymphna was 14 years old, she consecrated herself to Christ and took a vow of chastity. Shortly thereafter, her mother died. Damon had loved his wife deeply, and in the aftermath of her death his mental health sharply deteriorated. Eventually the king's counsellors pressed him to remarry. Damon agreed, but only on the condition that his bride would be as beautiful as his deceased wife. After searching fruitlessly, Damon began to desire his daughter because of her strong resemblance to her mother.
When St. Dymphna learned of her father's intentions, she swore to uphold her vows and fled his court along with her confessor Father Gerebernus, two trusted servants, and the king's fool. Together they sailed towards the continent, eventually landing in what is present-day Belgium, where they took refuge in the town of Geel.
One tradition states that once settled in Geel, St. Dymphna built a hospice for the poor and sick of the region. However, it was through the use of her wealth that her father would eventually ascertain her whereabouts, as some of the coins used enabled her father to trace them to Belgium. Damon sent his agents to pursue his daughter and her companions. When their hiding place was discovered, Damon travelled to Geel to recover his daughter. Damon ordered his soldiers to kill Gerebernus and tried to force St. Dymphna to return with him to Ireland, but she resisted. Furious, Damon drew his sword and struck off his daughter's head. She was said to have been 15 years old when she died. After St. Dymphna and Gerebernus were martyred, the residents of Geel buried them in a nearby cave. Years later, they decided to move the remains to a more suitable location. Some of her remains are at the shrine to Dymphna in Massillon, Ohio, United States.
In 1349 a church honouring St. Dymphna was built in Geel. By 1480, so many pilgrims were coming from all over Europe, seeking treatment for the mentally ill, that the church housing for them was expanded. Soon the sanctuary for the mad was again full to overflowing, and the townspeople began taking them into their own homes. Thus began a tradition for the ongoing care of the mentally ill that has endured for over 500 years and is still studied and admired today. Patients were, and still are, taken into the inhabitants of Geel's homes. Never called patients, they are called boarders, and are treated as ordinary and useful members of the town. They are treated as members of the host family. They work, most often in menial labour, and in return, they become part of the community. Some stay a few months, some decades, some for their entire lives. At its peak in the 1930s, over 4,000 'boarders' were housed with the town's inhabitants.
The remains of St. Dymphna were later put into a silver reliquary and placed in a church in Geel named in her honour. The remains of Gerebernus were moved to Xanten, Germany.  During the late 15th century the original St. Dymphna Church in Geel burned down. A second "Church of St. Dymphna" was then built and consecrated in 1532. The church still stands on the site where her body is believed to have first been buried.
According to nineteenth century Irish Catholic priest John Canon O'Hanlon, the commemoration of St. Dympna's and of St. Gerebern's arrival at Antwerp was celebrated on April 11, according to a Carthusian Martyrology, however their chief feast day was on May 15, the day of their final martyrdom. According to tradition, miracles occurred immediately after St. Dymphna’s tomb was discovered.
St. Dymphna is known as the Lily of Éire, due to her spotless virtue. She is traditionally portrayed wearing a crown, dressed in ermine and royal robes, and holding a sword. In modern versions she holds the sword awkwardly, as it symbolises her martyrdom, but in the older versions seen on numerous statues and stained glass images, her sword is pricking the neck of a demon; symbolising her title of Demon Slayer. She is also often portrayed holding a lamp, with the chained devil at her feet.
Some modern holy cards portray St. Dymphna in green and white, holding a book and white lilies.
St. Dymphna is the patron saint of mental illness. 
The US National Shrine of St. Dymphna is located at St. Mary's Catholic Church in Massillon, Ohio. The original shrine was destroyed by a fire in 2015, but reopened in December 2016. St. Dymphna's Special School is located in Ballina, County Mayo, Republic of Ireland and operates under the patronage of Western Care Association.
- National Shrine of St. Dymphna, Massillon, Ohio
- "St. Dymphna". Retrieved 13 September 2017.
- "SAINT DYMPHNA WONDERWORKER OF GHEEL". Saints Mary & Martha Orthodox Monastery. Retrieved 13 September 2017.
- "Saint Dymphna: Wonderworker of Gheel, May 15th". Wagener, South Carolina: Saints Mary and Martha Orthodox Monastery. January 2006. Retrieved 31 December 2013.
- Woulfe, Patrick. "DAMHNAIT". Irish Names and Surnames. Retrieved 7 July 2020.
- Benedictine Convent Sisters, Clyde, Missouri, "Tabernacle and Purgatory" May 1946 Archived 12 November 2012 at the Wayback Machine
- Jay, Mike (9 January 2014). "The Geel question". Aeon.
- Wells, Karin (9 March 2014). "Psychiatric community care: Belgian town sets gold standard". CBC News. CBC/Radio-Canada. Retrieved 10 April 2015.
- Goldstein, J. "Geel, Belgium: A Model of 'Community Recovery'". Birmingham, AL: Psychology Department, Samford University.
- Dr.Srole, Hobart/William Smith College, Geneva N.Y.
- Kirsch, Johann Peter. "St. Dymphna." The Catholic Encyclopedia Vol. 5. New York: Robert Appleton Company, 1909. 1 December 2015]
- "St. Dymphna", Franciscan Mission Associates
- Very Rev. John O'Hanlon. "Article XIII.—Commemoration of St. Dympna's and of St. Gerebern's Arrival, at Antwerp." In: Lives of the Irish Saints: With Special Festivals, and the Commemorations of Holy Persons. Vol. IV. Dublin, 1875. p. 124.
- Very Rev. John O'Hanlon. "Article I.—St. Dympna, Virgin and Martyr, and Patroness of Gheel, Belgium. [Sixth or Seventh Century.]." In: Lives of the Irish Saints: With Special Festivals, and the Commemorations of Holy Persons. Vol. V. Dublin, 1875. pp. 284-366.
- Catholic Exchange. com.
- "Todays Catholic St. Dymphna".
- St. Dymphna's Special School, Ballina