# Hilary of Poitiers

> Bishop of Poitiers (c. 310 – c. 367)

**Wikidata**: [Q44344](https://www.wikidata.org/wiki/Q44344)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Hilary_of_Poitiers)  
**Source**: https://4ort.xyz/entity/hilary-of-poitiers

## Summary
Hilary of Poitiers was a 4th-century bishop, theologian, and writer who served as the Bishop of Poitiers in ancient Gaul (modern-day France). Known as the "Hammer of the Arians" and the "Athanasius of the West," he is celebrated for his extensive theological writings defending orthodox Christianity against Arianism. He lived approximately from 310 to 367 AD and is recognized as a Doctor of the Church.

## Biography
- **Born**: c. 310 (exact date unknown, approximated as +0315-00-00T00:00:00Z in some records)
- **Nationality**: Associated with Ancient Rome (specifically the region of Poitiers, Gaul)
- **Education**: Not explicitly detailed in source material, though he held the role of scholaster (head of an ecclesiastical school)
- **Known for**: Theological defense against Arianism, authorship of significant Christian texts, and leadership as Bishop of Poitiers
- **Employer(s)**: Catholic Church (as Bishop of Poitiers)
- **Field(s)**: Theology, Philosophy, Ecclesiastical Leadership, Writing

## Contributions
Hilary of Poitiers produced a significant body of theological work that shaped Western Christianity.
- **Theological Defense**: Authored works defending the Nicene Creed against Arianism, earning him the title "Hammer of the Arians."
- **Literary Works**: Produced numerous treatises and commentaries, including works on the Psalms and the Trinity.
- **Ecclesiastical Leadership**: Served as the Bishop of Poitiers, guiding the local church and influencing broader church doctrine.
- **Educational Leadership**: Held the position of scholaster, indicating a role in leading ecclesiastical education.
- **Notable Work**: *De Trinitate* (On the Trinity), a foundational text in Trinitarian theology (referenced via notable_work Q3704067).

## FAQs
**Who was Hilary of Poitiers?**
Hilary of Poitiers was a 4th-century bishop and theologian from Gaul, known for his staunch defense of orthodox Christianity against Arianism. He is venerated as a saint and Doctor of the Church.

**What were his main contributions to theology?**
He authored extensive theological treatises, most notably *De Trinitate*, which clarified the doctrine of the Trinity. His writings earned him the nickname "Athanasius of the West" due to his parallel efforts in the West to those of Athanasius in the East.

**Where did he serve as a bishop?**
He served as the Bishop of Poitiers, a city in what is now France, during the mid-4th century. His episcopate was marked by significant theological conflict and leadership.

**Why is he called the "Hammer of the Arians"?**
This title reflects his vigorous and effective theological arguments against the Arian heresy, which denied the full divinity of Christ. His writings and leadership were instrumental in countering Arian influence in the Western Church.

**What is his legacy in the Catholic Church?**
Hilary is recognized as a Doctor of the Church, signifying his profound contribution to Christian doctrine. His feast day is celebrated, and churches such as Église Saint-Hilaire de Melle and Church Saint-Hilaire le Grand are named in his honor.

## Why They Matter
Hilary of Poitiers played a pivotal role in preserving and articulating orthodox Trinitarian theology during a period of intense doctrinal controversy. Without his writings and leadership, the Western Church might have been more susceptible to Arianism, potentially altering the development of Christian doctrine. His work provided a crucial counterbalance to Eastern theological debates, ensuring a unified doctrinal stance across the Roman Empire. His influence extended beyond his lifetime, as evidenced by the enduring veneration of his name in church architecture and his status as a Doctor of the Church.

## Notable For
- **Title**: "Hammer of the Arians" for his theological opposition to Arianism.
- **Title**: "Athanasius of the West" for his parallel role to Athanasius in defending orthodoxy.
- **Role**: Bishop of Poitiers (c. 310 – c. 367).
- **Role**: Scholaster (head of an ecclesiastical school).
- **Recognition**: Doctor of the Church.
- **Works**: Author of *De Trinitate* and other theological treatises.
- **Legacy**: Multiple churches named after him, including Église Saint-Hilaire de Melle and Church Saint-Hilaire le Grand.
- **Aliases**: Hilarius Pictaviensis, Saint Hilary of Poitiers, Saint Hilary, St. Hilary.

## Body

### Early Life and Identity
Hilary of Poitiers was born around 310 AD, with some records approximating his birth year as 315. He was a member of the human species, Homo sapiens, and lived during the era of Ancient Rome. His citizenship is associated with the region of Poitiers, which was part of the Roman Empire at the time. He is identified as a human, a theologian, a philosopher, a writer, and a Catholic priest.

### Ecclesiastical Career
Hilary served as the Bishop of Poitiers, an ordained minister in the Catholic Church. His tenure as bishop spanned from approximately 310 to 367 AD. In this role, he was also a scholaster, indicating his leadership in ecclesiastical education. His work as a bishop involved significant theological engagement, particularly in the defense of Nicene orthodoxy against Arianism.

### Theological Contributions and Writings
Hilary's primary contribution was his theological writing, which included extensive treatises on the Trinity and the Psalms. His most notable work, *De Trinitate*, is a cornerstone of Trinitarian theology. He is recognized as a writer who used written words to communicate complex theological ideas. His works were instrumental in the Western Church's response to Arianism, earning him the titles "Hammer of the Arians" and "Athanasius of the West."

### Legacy and Veneration
Hilary's legacy is marked by his recognition as a Doctor of the Church, a title reserved for saints whose writings have significantly contributed to Christian doctrine. His influence is commemorated in various churches, including Église Saint-Hilaire de Melle in Deux-Sèvres, France, and Church Saint-Hilaire le Grand in Poitiers, France. He is also associated with the alias "Hilarius Pictaviensis" and is venerated under names such as Saint Hilary of Poitiers and St. Hilary.

### Historical Context and Connections
Hilary lived during a time of significant theological debate within the early Church. His work intersected with that of other key figures, such as Gilbert de La Porrée, a French theologian who lived centuries later but is connected in the broader context of theological scholarship. Hilary's life and work are documented in various historical and academic sources, with numerous identifiers linking him to different databases and archives.

### Identifiers and References
Hilary of Poitiers is associated with a wide array of identifiers across different systems, including ISNI (0000000120966126), VIAF (89595978), GND (118550896), and Library of Congress (n81008231). These identifiers link him to various digital archives, library catalogs, and academic resources, ensuring his work and legacy are accessible to researchers and the public. His presence in these databases underscores his enduring significance in the fields of theology, history, and religious studies.

## References

1. Catholic-Hierarchy.org
2. Mirabile: Digital Archives for Medieval Culture
3. CiNii Research
4. Freebase Data Dumps. 2013
5. Breviarium Romanum, editio princeps (MLCT 3)
6. El calendario romano tridentino tras su promulgación y sus primeras modificaciones (1568–1602)
7. La evolución del Calendario Romano durante los siglos XVIII y XIX
8. El último período de la historia del calendario tridentino: los inicios de su reforma (1904–1960)
9. Calendarium Romanum Generale (1969)
10. Virtual International Authority File
11. [Source](http://digitale.beic.it/primo_library/libweb/action/search.do?fn=search&vid=BEIC&vl%283134987UI0%29=creator&vl%28freeText0%29=Hilarius%20Pictaviensis%20)
12. CONOR.SI
13. A Biographical Dictionary of the Saints
14. Treccani's Enciclopedia on line
15. Enciclopedia Treccani
16. LIBRIS. 2012
17. Provenio
18. HMML Authority File
19. Clavis Historicorum Antiquitatis Posterioris