Book of Leacan

The Book of Leacan, so called from being composed at Leacan, was compiled by the MacFirbises, from the twelfth to the fifteenth century, and is one of the greatest and most authentic works on Irish history and antiquities. It is a very voluminous MS., written on fine vellum, and comprises the history of Ireland from the earliest ages to the fifteenth century. The original Book of Leacan is in the library of the Royal Irish Academy, and a copy, transcribed by Connellan, is in the Royal Library at Windsor.

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