The Book of Leinster

Between 1151 and 1224 CE a manuscript was compiled, probably in what is now Terryglass in County Tipperary, by the abbot of a Terryglass monastery and his followers. The abbot, Áed Ua Crimthainn, actually signed one of the pages, stating that he "wrote this book and collected it from many books." Originally called Lebar na Núachongbhála, the "Book of Oughaval," it is now referred to as the Book of Leinster. Oughaval, now called "Oak Vale," was a 6th century monastery founded by a student of St. Columba. The Book of Leinster was there for many years.

Its second name is because it is believed that it was commissioned by a king of Leinster, Diarmait Mac Murchada (d. 1171), and then passed from him to a few others, getting "lost" until it surfaced at Oughaval in the 14th century. An Irish language scholar in the 19th century gave it its present name because of the associations of its contents with Leinster.

It contains 187 13" by 9" leaves. Internal evidence suggests that 45 leaves are missing. It is one of our most important sources of genealogy, mythology, and Irish literature. It contains the most complete version of of Táin Bó Cuailnge, "The Cattle Raid of Cooley."

The manuscript contains many different types of document. The illustration above is from one part called Dindshenchas, "place-name lore," and begins with the words Temuir, unde nominatur, "Tara, whence is it named." Speaking of Latin: Latin was moving into Ireland because of ecclesiastical involvement, and replacing Irish as a scholarly language. That may be the reason why the Book includes Lebor Gabála Érenn, literally the "Book of Invasions" (considered the Irish "Book of Genesis" and a history of the world),  in which we are told that Irish was created after the confusion of languages caused by the incident of the Tower of Babel. Because it was created later, it avoids the "shortcomings and confusion" of other languages and is therefore special.

The Lebor Gabála Érenn tells of six times that Ireland was invaded, which is a great topic for tomorrow.

The Culdees

The Culdees were Christian ascetics in Ireland (later spreading to Scotland, Wales, and England). The name comes from Irish Céilí Dé, "Spouses of God." Some lived in monastic communities, some lived as hermits.

Máel Ruain was an abbot-bishop in Dublin. His real name is unknown; Máel Ruain was his monastic name, from Old Irish máel meaning "one who is tonsured" and Ruain meaning "of Rúadán," so he likely started at the monastery of St. Rúadán. Some credit him with bringing to the Culdees the same kind of organization that Chrodegang of Metz brought to the continent with his Rule.

Máel Ruain founded the monastery of Tallaght, a few miles south-west of Dublin. The Book of Leinster (compiled about 1160) includes a reference to the land at Tallaght being given to Ruain from the king in 774. It had round towers designed as bell towers that doubled as sites for relics he brought from the continent of Saints Peter and Paul, along with hair from the Virgin Mary. It became an important center of learning and produced two early martyrologies, one about Máel Ruain himself.

The rule at Tallaght was similar to the Rule of Chrodegang. A 1911 book, The Monastery of Tallaght, published by the Royal Irish Academy, presents information from historical documents about Tallaght and describes their shared asceticism thusly:

Not a drop of beer was drunk in Tallaght in Maelruain’s [sic] lifetime. When his monks used to go anywhere else, they used not to drink a drop of beer in Tir Cualann, whomsoever they might happen to meet. However, when they went a long distance, in that case they were allowed to drink. Nor a morsel of meat was eaten in Tallaght in his lifetime [unless] it were a deer or a wild swine. What meat there was [at Tallaght was served to] the guests.

Máel Ruain died in 792. The monastery survived viking attacks, but not the Norman Invasion. In the 12th century it was attached to the Archdiocese of Dublin. It went through a few changes of hands, but only one tower remains of the original structure. Today it is the site of St. Máelruain’s Church of Ireland, built in 1829.

While we're in Ireland, we should look at other records, such as the Book of Leinster...next time.